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Welcome to NASA's science Live.

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This is your chance to interact
with NASA experts

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and have your questions
answered in real time.

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I'm your host Tahira Allen.

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Today,
we're diving into the excitement

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surrounding the upcoming

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total solar eclipse
that will cross North America,

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passing over Mexico,
the United States and Canada.

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If you have questions throughout
the show, you can send them in

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using the hashtag Ask NASA
on social media or drop them

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directly into the comment box
wherever you're watching.

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Now, this eclipse isn't just
any ordinary celestial event.

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It is a rare opportunity
for millions

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to witness the moon
completely block out the sun,

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turning day into dusk for those
in the path of totality.

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And get this,

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this will be the last
total solar eclipse to cross

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the contiguous United States
for the next 20 years.

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What makes this even more
special is that an estimated

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31.6 million people live
within the path of totality.

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And if you're not in the path of
totality, no worries.

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Everyone in the contiguous
United States

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will have the chance to see at
least a partial solar eclipse.

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Now, picture this

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a collective pause
as people across the U.S. gaze

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upward to experience the wonder
of the cosmos together.

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I can't wait.

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And today, I'm joined by Dr.

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Gina DiBraccio, a Sun expert
who's going to walk us through

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how to prepare for the April 8th
event.

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Gina, welcome. Hi, Tahira,
Thanks for having me.

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And thank you so much
for being here.

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Now, can you kick off
by telling our viewers

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a little bit
about your role here at NASA?

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Sure.

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So I'm the deputy director
of the Heliophysics Science

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Division at NASA's
Goddard Space Flight Center.

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That means I'm helping
to oversee

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an organization of scientists
that are studying Heliophysics,

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which is the study of the sun
and its influence on everything.

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So we're looking
at the physics of the sun,

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but also how it impacts
the Earth's magnetic field,

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the upper atmosphere,
and really just understanding

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how the whole system works
together.

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That is great.

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And I'm so happy to be here
with you again today. Yes.

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Gina and I had a blast
hosting last year's

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annular solar eclipse,
and I think it's safe to say

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we are thrilled to be back again
for the total solar eclipse.

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Now, before we dive
into some details,

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Gina, can you help
clear something up for me?

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Sure.

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What exactly sets an annular

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solar eclipse apart from a total
solar eclipse like this year?

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Okay,

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so when a solar eclipse happens,
the moon is going to cross in

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between the earth and the sun.

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And when that happens,
the moon's shadow is cast on the

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on the earth.

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And we can look up in the sky
and see it.

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Now, for an annular eclipse,

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the moon is going to be
just a little bit farther away

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so that it doesn't
completely block out the sun.

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And that's what you can see
on the screen here.

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You're left
with a ring of fire in the sky.

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Now, for a total solar eclipse,

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the moon is going to be closer
to the earth

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so that the sun
is completely blocked.

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And that way we can see
the solar corona.

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It's that hot upper atmosphere
of the sun that we can't see

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with our visible eyes
on a day to day basis.

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So it's really good to know that
difference because, you know,

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it's my understanding
that in total

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solar eclipse, the safety tips
then are a little bit different

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than an annular. Right, Exactly.

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And so for our viewers at home,
we have a special guest,

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someone you might recognize
who's here

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to let us know how to safely
view the April 8th event.

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Hey, Eclipse
enthusiast Lance Bass here.

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And I want to tell you how to
protect those eyes and stay safe

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during a solar eclipse
during these celestial events,

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the sun, earth and moon are in
sync, creating solar eclipses.

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You can look directly at the sun
during a total solar eclipse,

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but only when it's completely

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covered by the moon for a brief
period known as totality.

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This is a really special moment
at all.

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Other times
you should wear eclipse glasses

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so that you don't say
bye bye bye to your vision.

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Seriously.

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And eclipse glasses are not
the same as regular sunglasses.

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No, they're not safe.

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Solar
viewers are thousands of times

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darker and will have
a specific certification

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that you should look for right
here.

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Don't be a space cowboy and try
to look directly at the sun.

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If you don't have Eclipse
glasses,

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you can use an indirect viewing
method

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like a pinhole projector.

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You can make one of these
with something

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as simple as an index card
with a hole or a calendar,

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or even your hands with a sun
at your back.

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You can safely project
an image of the sun

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through the hole onto a nearby
surface, like the ground.

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It's going to be me

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who is wearing my eclipse
glasses, and so are you.

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Okay.

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We are already
seeing a lot of questions

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pouring in online
from our viewers watching.

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So let's jump
right into this Q&A.

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Now, remember,
if you're watching live,

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you can submit

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your own questions
for Gina using the hashtag ask

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NASA or
by posting them in the comments.

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Wherever you're watching today.

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All righty, Gina,
our first question is from.

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it actually looks like.

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So we've got kind
of a group question here. Okay.

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It looks like a lot of people
watching

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are asking about notices
that may have been issued

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in certain areas with guidance
on how to prepare for crowds

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and preventative measures 
meant to reduce traffic.

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Could you give us a little bit

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more info on how to best prepare
for April 8th?

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Sure.

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So as you said earlier
to hear it along

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the path of totality,
we have about 31 million

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people which I spoke to say it's
already crowded to begin with.

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And of course, we'll have people

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traveling into that area
to make it even more crowded.

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So, you know,

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just think of the preventative
measures that you can take

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in case
you get stuck in traffic.

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So make sure you have gas
in the tank.

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Make sure if

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you have a battery operated car,
you you've charged up,

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you have some extra food
and water with you.

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If there are traffic lines,
you know, just be prepared

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to have patience
and wait a little bit for that.

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Thank you, Gina.

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And so we have an
our next question is from

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a user on Facebook
who wants to know what science

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will be done during the total
solar eclipse.

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Right.

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The one of the things
that we're most excited for it

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now is actually performing
different science experiments

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during the eclipse.

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Now, a favorite

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that I like to talk about
is that we're using NASA's WB 57

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high altitude research jet
to perform some experiments.

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So the goal the jets going
to fly across a path of totality

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so that

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it gets a little bit longer

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in totality than if you were
just standing on the ground.

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And what that means
is that the instruments on board

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are going to look up at the
solar corona and take images

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so that we can study
the composition of the corona.

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Understand how particles
are accelerated and charged

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and also be able to study dust
that is around the sun

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that we can't really understand
when we look

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at just on a day to day
basis either.

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And so
and this is only an experiment

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that can be done during a total
solar eclipse.

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Is that right? Right.

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So so we do have instruments
called coronagraph

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that are essentially
artificial eclipses,

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and they will block out the sun

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so that we can study the corona.

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But the way that the light bends
around these coronagraph,

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we can't actually get deep down
into the corona itself

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in that lower part of it.

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So for the total solar eclipse
that happens naturally,

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it allows us
to get down into the

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the lower part of the corona,
which means this is one of

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the only times that we can study
this area of the sun.

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That is amazing.

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And so we have our next question
on Jordan

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from Jordan on YouTube.

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Who wants to know

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why is it bad to view
a solar eclipse directly?

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Okay. Thanks for that question,
Jordan.

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So so we want to be
really careful about eye safety

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during any eclipse
or even on a day to day basis.

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You don't want to
look at the sun

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so that you're not causing any
permanent damage to your eyes.

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Now, the way that it works
for a total solar eclipse

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is that during
the partial phases

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you need to have

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the proper safety viewing
that we just heard about.

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You can have the eclipse
viewing glasses.

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You can make
a pinhole projector,

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and you need to use that to see
the partial eclipse if you are

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in the path of totality
during totality.

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You don't need to have
those glasses.

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You can look
directly up at the sky

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and see the sun
because it will be blocked.

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So you're just looking at that
corona.

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You're not actually going to be

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looking at the sun,
but only for totality.

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And I have a great follow up
from Mouse

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seven, five, seven on YouTube.

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Who wants to know where is the
path of totality for this event?

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Okay.

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You can go to the NASA's
website, go dot NASA.gov,

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slash Eclipse Explorer,
and it will show you the map

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so that you can actually see
where totality is located.

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But across the U.S., it will
stretch beginning down in Texas

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all the way through Ohio.

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We'll have a station
in Cleveland

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doing the broadcast, too.

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And then up upcoming as well.

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Yeah, exactly.
And thank you for that.

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And then our next question
is from Matthew

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Henson on YouTube, who asks,

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What happens to the moon
and the sun as seen from Earth

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during the eclipse?

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So we have the sun in the sky
and the moon will be crossing

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in front of the sun.

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So when you're
when you're looking up

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at the sky with your proper
safety gear, what you'll see

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is that the sun slowly becomes
covered by the moon.

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And that's the
that's our perspective

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from the surface of the earth,
basically, is that

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we're going to see the sun

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disappear as the moon moves in
front of it.

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That is so cool too, that
the moon is just the right size,

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you know, to cover the sun.

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Yes. During this event.

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And so we have a lot of Franklin
on YouTube.

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Who wants to know
how long will the eclipse last?

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So if you're in the path of
totality,

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maximum totality will be around
four and a half minutes long.

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It depends, though, where
you even fall within that path.

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If you're on the edges,
it could be a little shorter.

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You want to be kind of

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as deep within it as you can,

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and then you'll get that
maximum totality.

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But I will say that this eclipse
that we're having coming up

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in April totality is lasting
longer than it did

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in 2017 when we had the eclipse
across America as well.

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Do you know why?

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So it just has to do with
kind of where

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the moon is in its orbit,
how far it is away from the sun.

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And for that one in 2017,
maximum totality

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was only about 2 minutes,
a little bit more than that.

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So we're almost doubled.

246
00:10:50,549 --> 00:10:53,352
man, that's
so that is so cool to know.

247
00:10:53,352 --> 00:10:56,956
So our next question is from
a viewer on who wants to know

248
00:10:57,156 --> 00:11:00,159
what tips do you have
of taking pictures of eclipses?

249
00:11:00,826 --> 00:11:01,293
Okay.

250
00:11:01,293 --> 00:11:06,132
Well, if you are taking pictures
of eclipses during totality,

251
00:11:06,432 --> 00:11:07,400
you can use your phone.

252
00:11:07,400 --> 00:11:08,034
That's fine.

253
00:11:08,034 --> 00:11:10,236
The same way that we can
look at the eclipse

254
00:11:10,236 --> 00:11:12,571
with our eyes
during totality only.

255
00:11:12,571 --> 00:11:14,874
You can also use your phone
to take pictures

256
00:11:14,874 --> 00:11:16,242
now at any other part.

257
00:11:16,242 --> 00:11:19,045
You need to have a proper
solar filter

258
00:11:19,045 --> 00:11:20,846
in order
to take those photographs.

259
00:11:20,846 --> 00:11:23,816
So not during a partial eclipse.
Correct. Yeah.

260
00:11:23,816 --> 00:11:25,418
Any time. Okay.

261
00:11:25,418 --> 00:11:28,487
So our next question is from
Ryan on YouTube, who asks,

262
00:11:28,721 --> 00:11:31,724
When was the last eclipse
and when is the next one?

263
00:11:32,091 --> 00:11:33,092
Okay.

264
00:11:33,092 --> 00:11:35,194
It depends on
how you define eclipse.

265
00:11:35,194 --> 00:11:38,197
So in this context,
let's talk about total.

266
00:11:38,330 --> 00:11:40,366
Total eclipse is a total
solar eclipse.

267
00:11:40,366 --> 00:11:44,236
So the last one that crosses
the US, as I just

268
00:11:44,236 --> 00:11:48,207
mentioned, was in 2017,
and I was actually fortunate

269
00:11:48,207 --> 00:11:49,775
enough to see that myself.

270
00:11:49,775 --> 00:11:51,777
So I was really glad to see it.
Yeah.

271
00:11:51,777 --> 00:11:53,746
So the next one coming up
though, isn't

272
00:11:53,746 --> 00:11:56,949
for another 20 years
in the across the U.S.

273
00:11:56,949 --> 00:11:58,517
So you'll have to really

274
00:11:58,517 --> 00:12:00,853
take advantage of this one
unless you want to take it

275
00:12:00,853 --> 00:12:03,122
from now. Yeah, absolutely.

276
00:12:03,122 --> 00:12:06,158
And so actually, this is
one of my favorite questions.

277
00:12:06,158 --> 00:12:08,828
We have Pouliot on
Wilber on YouTube.

278
00:12:08,828 --> 00:12:12,264
Who wants to know, Do animals
react in a certain way?

279
00:12:12,264 --> 00:12:12,498
You know,

280
00:12:12,498 --> 00:12:14,934
what are some of these changes
that we can expect

281
00:12:14,934 --> 00:12:17,203
during a total
solar eclipse? Right.

282
00:12:17,203 --> 00:12:20,673
When when the eclipse
is taking place, it really gives

283
00:12:20,673 --> 00:12:24,944
that feeling of dusk and nature
reacts as if it is dusk.

284
00:12:25,144 --> 00:12:28,147
So if you have the opportunity
to view the eclipse

285
00:12:28,314 --> 00:12:31,317
also in more of a quiet place
where you can appreciate nature,

286
00:12:31,684 --> 00:12:33,252
you might be able to see
the birds

287
00:12:33,252 --> 00:12:35,654
flying back into the trees
to nest for the night,

288
00:12:35,654 --> 00:12:38,090
or you can hear the crickets
come out and chirp

289
00:12:38,090 --> 00:12:39,492
and just kind of look around

290
00:12:39,492 --> 00:12:42,061
and watch nature,
because it really does

291
00:12:42,061 --> 00:12:45,064
react to to what's going on
with the eclipse.

292
00:12:45,297 --> 00:12:47,767
It is so cool to think about to,
you know, that this is just

293
00:12:47,767 --> 00:12:51,036
like a multi-sensory experience
for everybody.

294
00:12:51,036 --> 00:12:51,370
Right.

295
00:12:51,370 --> 00:12:55,274
And so our next question
is another, I'd say,

296
00:12:55,274 --> 00:12:56,509
group question.

297
00:12:56,509 --> 00:12:56,909
We are

298
00:12:56,909 --> 00:13:00,546
getting a lot of questions
about the timing of the eclipse

299
00:13:00,846 --> 00:13:03,549
in specific areas
around the country.

300
00:13:03,549 --> 00:13:04,683
And, you know, actually,

301
00:13:04,683 --> 00:13:06,852
luckily,
NASA's got us covered with that

302
00:13:06,852 --> 00:13:09,822
with an incredible tool
to help with just this.

303
00:13:09,989 --> 00:13:10,890
As Gina mentioned

304
00:13:10,890 --> 00:13:13,893
earlier, it’s called the Eclipse
Explorer map.

305
00:13:14,126 --> 00:13:17,496
And our friend James Trailie is 

306
00:13:17,496 --> 00:13:18,631
back here and he's going to walk

307
00:13:18,631 --> 00:13:21,867
how we're going to use this new
map to prepare for April 8th.

308
00:13:23,502 --> 00:13:24,503
Have you ever wondered how to

309
00:13:24,503 --> 00:13:27,506
track a solar eclipse
down to the exact second?

310
00:13:27,673 --> 00:13:29,408
NASA has
you covered for the April

311
00:13:29,408 --> 00:13:31,777
8th, 2024 for total
solar eclipse

312
00:13:31,777 --> 00:13:34,246
that would be sweeping across
North America.

313
00:13:34,246 --> 00:13:35,214
I'm James Tralie,

314
00:13:35,214 --> 00:13:36,348
and I'm going to walk you
through

315
00:13:36,348 --> 00:13:39,618
how to use NASA's
Eclipse Explorer, an interactive

316
00:13:39,618 --> 00:13:42,721
map designed to help you plan
your eclipse viewing experience.

317
00:13:43,289 --> 00:13:46,258
This interactive map offers
layers of detail that you can

318
00:13:46,258 --> 00:13:50,329
toggle on or off to explore
each facet at your own pace.

319
00:13:50,863 --> 00:13:55,401
Visit Go.NASA.gov/
Eclipse Explorer.

320
00:13:55,935 --> 00:13:58,304
Today, I'm showing you
how to prepare for the April 8th

321
00:13:58,304 --> 00:14:01,073
total solar eclipse.
So let's jump in.

322
00:14:01,073 --> 00:14:03,475
This is the map with the eclipse
path.

323
00:14:03,475 --> 00:14:04,910
A menu
should appear on the left,

324
00:14:04,910 --> 00:14:06,312
which you can expand or collapse

325
00:14:06,312 --> 00:14:08,981
with this little arrow
that you see right here.

326
00:14:08,981 --> 00:14:09,782
With this menu,

327
00:14:09,782 --> 00:14:12,484
you can manipulate the map
in a lot of ways.

328
00:14:12,484 --> 00:14:14,687
But I first want to show you
how you can look up

329
00:14:14,687 --> 00:14:17,289
what the eclipse will look like
in your location

330
00:14:17,289 --> 00:14:18,791
and the timing of
when you should look up

331
00:14:18,791 --> 00:14:21,193
with proper eye protection.
Of course.

332
00:14:21,193 --> 00:14:22,628
I'm at NASA's
Goddard in Greenbelt,

333
00:14:22,628 --> 00:14:23,329
Maryland right now,

334
00:14:23,329 --> 00:14:26,332
so I'm going to type
that into our zip code city bar

335
00:14:26,365 --> 00:14:27,066
and hit enter

336
00:14:28,567 --> 00:14:28,801
and it

337
00:14:28,801 --> 00:14:31,804
will snap right to our location,
Greenbelt, Maryland.

338
00:14:31,804 --> 00:14:32,304
And you'll notice

339
00:14:32,304 --> 00:14:33,706
when the map zoomed
in, it displayed

340
00:14:33,706 --> 00:14:36,642
a box with information
about what it will see and when.

341
00:14:36,642 --> 00:14:37,977
In my location,

342
00:14:37,977 --> 00:14:40,279
you can click on the various
phases of the eclipse

343
00:14:40,279 --> 00:14:42,047
with these little icons
right here

344
00:14:42,047 --> 00:14:43,349
to see what the sun
would look like

345
00:14:43,349 --> 00:14:45,551
at different points
during the eclipse.

346
00:14:45,551 --> 00:14:47,253
The map also includes
information

347
00:14:47,253 --> 00:14:49,622
about the current weather
and cloud coverage,

348
00:14:49,622 --> 00:14:50,623
along with a countdown

349
00:14:50,623 --> 00:14:52,124
to the maximum eclipse

350
00:14:52,124 --> 00:14:55,127
and the percent of the sun that
will be covered in your area.

351
00:14:55,561 --> 00:14:57,963
If you're located
in the path of totality

352
00:14:57,963 --> 00:15:00,833
or you have the chance
to see the total solar eclipse,

353
00:15:00,833 --> 00:15:03,102
your information
box will have a special feature

354
00:15:03,102 --> 00:15:05,037
when you click on the maximum
eclipse.

355
00:15:05,037 --> 00:15:05,971
To demo that,

356
00:15:05,971 --> 00:15:08,240
let me go over to Cleveland,
Ohio,

357
00:15:08,240 --> 00:15:10,009
which is in the path
of totality.

358
00:15:10,009 --> 00:15:11,777
And snap that up here for you.

359
00:15:11,777 --> 00:15:12,978
So in the spot where we saw

360
00:15:12,978 --> 00:15:14,947
the percent of the sun
covered in Greenbelt,

361
00:15:14,947 --> 00:15:17,249
now instead there's
the duration of totality,

362
00:15:17,249 --> 00:15:20,252
which for Cleveland is 3 minutes
and 49 seconds.

363
00:15:20,319 --> 00:15:23,155
That's when the moon
will completely block the sun.

364
00:15:23,155 --> 00:15:24,823
And when I click
on the time of totality

365
00:15:24,823 --> 00:15:26,125
and to be precise,
for Cleveland,

366
00:15:26,125 --> 00:15:28,861
it's three 13:45 p.m..

367
00:15:28,861 --> 00:15:32,831
You see it snaps directly
to what the sun's upper

368
00:15:32,831 --> 00:15:35,200
atmosphere called the corona
will look like from Earth.

369
00:15:35,200 --> 00:15:37,736
A total solar eclipse
is the only time we can see

370
00:15:37,736 --> 00:15:40,172
this faint region of the sun
with our own eyes.

371
00:15:40,172 --> 00:15:42,541
The corona
also holds clues for scientists

372
00:15:42,541 --> 00:15:45,044
about the sun's behavior
and activity.

373
00:15:45,044 --> 00:15:46,879
Some other cool features
include the ability

374
00:15:46,879 --> 00:15:49,148
to use the slider bar
that you see right here

375
00:15:49,148 --> 00:15:52,318
to move the moon's shadow
across the path of totality.

376
00:15:52,418 --> 00:15:53,619
You can see it sliding like that

377
00:15:54,653 --> 00:15:56,889
on April 8th
when the eclipse is happening.

378
00:15:56,889 --> 00:15:59,658
You can select this live button
that's right here.

379
00:15:59,658 --> 00:16:02,661
And it will track the eclipse
in real time

380
00:16:02,728 --> 00:16:04,263
by clicking
the percent coverage.

381
00:16:04,263 --> 00:16:07,232
That's right here. I can zoom
out a little bit to show this.

382
00:16:07,232 --> 00:16:08,133
You can see

383
00:16:08,133 --> 00:16:09,168
just how much of the sun

384
00:16:09,168 --> 00:16:11,203
will be covered by the moon
in any given area,

385
00:16:11,203 --> 00:16:13,105
even outside that
path of totality.

386
00:16:13,105 --> 00:16:13,706
And remember,

387
00:16:13,706 --> 00:16:15,040
it is only safe to look

388
00:16:15,040 --> 00:16:18,043
directly at the sun without eye
protection during totality

389
00:16:18,310 --> 00:16:21,213
at all other times, including
when the sun isn't blocked

390
00:16:21,213 --> 00:16:21,814
at all.

391
00:16:21,814 --> 00:16:23,649
And during a partial
solar eclipse,

392
00:16:23,649 --> 00:16:25,284
you should wear eclipse glasses

393
00:16:25,284 --> 00:16:28,687
or view through an indirect
method like a pinhole projector.

394
00:16:29,188 --> 00:16:30,823
For safety tips from NASA.

395
00:16:30,823 --> 00:16:34,727
Visit go.NASA.gov
/Eclipse Eyes Safety.

396
00:16:35,327 --> 00:16:37,663
There are many more layers
and features to dive into

397
00:16:37,663 --> 00:16:39,264
on the Eclipse Explorer map,

398
00:16:39,264 --> 00:16:40,933
so I encourage you
to take a look

399
00:16:40,933 --> 00:16:42,568
to prepare
before the total solar

400
00:16:42,568 --> 00:16:45,571
eclipse crosses
North America on April 8th.

401
00:16:45,637 --> 00:16:47,606
And join me,
along with other NASA's

402
00:16:47,606 --> 00:16:49,808
science communicators
and experts on April 8th

403
00:16:49,808 --> 00:16:52,144
for the NASA broadcast
starting at 1 p.m.

404
00:16:52,144 --> 00:16:53,212
Eastern time.

405
00:16:53,212 --> 00:16:53,912
We'll be taking you

406
00:16:53,912 --> 00:16:56,915
with us as the eclipse moves
across the country.

407
00:16:56,982 --> 00:16:59,251
Thank you and enjoy
the total solar eclipse.

408
00:17:01,620 --> 00:17:03,355
Impressive right now.

409
00:17:03,355 --> 00:17:06,525
You can access this map from
the comfort of your own home

410
00:17:06,792 --> 00:17:10,062
and witness the eclipse journey
in real time on April 8th

411
00:17:10,295 --> 00:17:14,733
by visiting Go.NASA.gov
/Eclipse Explorer.

412
00:17:15,567 --> 00:17:18,504
Now, Gina,
this map is one way for folks

413
00:17:18,504 --> 00:17:20,372
at home
to get involved in the eclipse.

414
00:17:20,372 --> 00:17:22,274
But I understand
there are some other ways

415
00:17:22,274 --> 00:17:24,777
that people can play
a true hands on role

416
00:17:24,777 --> 00:17:26,178
in this April 8th event.

417
00:17:26,178 --> 00:17:28,747
Can you tell us a little bit
more about those? Right.

418
00:17:28,747 --> 00:17:31,750
We have different projects
among NASA

419
00:17:31,850 --> 00:17:33,552
where the public
can get involved

420
00:17:33,552 --> 00:17:36,221
in order to really contribute
to our understanding

421
00:17:36,221 --> 00:17:38,357
of the eclipse
and eclipse science.

422
00:17:38,357 --> 00:17:40,793
So two of those projects
that I want to talk about,

423
00:17:40,793 --> 00:17:44,730
the first one is Globe Observer,
and with Globe Observer,

424
00:17:44,730 --> 00:17:46,732
you download
the app to your phone.

425
00:17:46,732 --> 00:17:47,900
You need a thermometer

426
00:17:47,900 --> 00:17:50,335
and what you do is
you actually take measurements

427
00:17:50,335 --> 00:17:53,072
before, during
and after the eclipse

428
00:17:53,072 --> 00:17:54,706
of the temperature
where you are,

429
00:17:54,706 --> 00:17:57,509
you record it in the app.
You also take pictures.

430
00:17:57,509 --> 00:18:00,045
It is it's very simple
for people at home to do.

431
00:18:00,045 --> 00:18:02,581
You take pictures
of cloud coverage as well,

432
00:18:02,581 --> 00:18:03,949
because what that's doing

433
00:18:03,949 --> 00:18:05,284
is it's reporting

434
00:18:05,284 --> 00:18:08,787
the conditions local to you
so that we can understand

435
00:18:09,054 --> 00:18:12,424
what changes the sun is actually
having on our atmosphere

436
00:18:12,524 --> 00:18:13,826
during the eclipse.

437
00:18:13,826 --> 00:18:17,062
So that's one of the projects
where anybody in the public

438
00:18:17,062 --> 00:18:18,097
can get involved.

439
00:18:18,097 --> 00:18:20,199
Now, the other one is called
Sun Sketcher,

440
00:18:20,199 --> 00:18:23,168
and this one once again
requires an app from your phone

441
00:18:23,168 --> 00:18:24,236
that you download

442
00:18:24,236 --> 00:18:26,738
and you're going
to put your phone down

443
00:18:26,738 --> 00:18:29,908
and actually just let it take
pictures during the eclipse.

444
00:18:29,908 --> 00:18:34,113
And what it will do is focus on
the Bailey's beads that form.

445
00:18:34,113 --> 00:18:35,781
So that's kind of the light
that you see

446
00:18:35,781 --> 00:18:38,784
peeking around the moon
as it's covering the sun.

447
00:18:39,184 --> 00:18:41,854
And those Bailey beads
are the light coming through

448
00:18:41,854 --> 00:18:44,356
kind of the peaks
and valleys on the moon,

449
00:18:44,356 --> 00:18:47,159
where it helps us to understand
the size of the sun

450
00:18:47,159 --> 00:18:49,061
and the shape of the sun
and really kind of

451
00:18:49,061 --> 00:18:51,730
what's going on there
with the structure of the sun.

452
00:18:51,730 --> 00:18:53,031
And so with that one, again,

453
00:18:53,031 --> 00:18:54,700
just a simple app
that you download.

454
00:18:54,700 --> 00:18:55,968
You leave your phone, go,

455
00:18:55,968 --> 00:18:57,936
and it takes the measurements
for you.

456
00:18:57,936 --> 00:18:59,538
I mean, technology these days,
you know?

457
00:18:59,538 --> 00:18:59,872
Right.

458
00:18:59,872 --> 00:19:02,307
Like it
it just completely fascinates me

459
00:19:02,307 --> 00:19:05,144
that you can do NASA's science
from your cell phone.

460
00:19:05,144 --> 00:19:06,945
And if you're interested
in learning more

461
00:19:06,945 --> 00:19:09,081
about these projects
that Gina just mentioned

462
00:19:09,081 --> 00:19:12,084
or other ways that you can do
NASA's Science visit,

463
00:19:12,251 --> 00:19:16,188
go dot nasa.gov forward slash
do eclipse science.

464
00:19:16,822 --> 00:19:17,422
Now, Gina,

465
00:19:17,422 --> 00:19:18,257
not only will

466
00:19:18,257 --> 00:19:19,491
we be able to witness

467
00:19:19,491 --> 00:19:23,328
a total solar eclipse on April
8th, I've heard that for

468
00:19:23,562 --> 00:19:25,597
for those
in the path of totality,

469
00:19:25,597 --> 00:19:28,967
you could also see some other
things in the sky around that.

470
00:19:28,967 --> 00:19:29,835
That's right.

471
00:19:29,835 --> 00:19:32,504
Could you tell us a little bit
about what we could expect?

472
00:19:32,504 --> 00:19:33,238
Sure.

473
00:19:33,238 --> 00:19:35,140
So we actually have
the opportunity

474
00:19:35,140 --> 00:19:38,410
to see some planets out
in the sky during totality,

475
00:19:38,544 --> 00:19:41,747
because when totality occurs,
it's going to cover up the sun

476
00:19:41,947 --> 00:19:43,615
and it makes the sky darker.

477
00:19:43,615 --> 00:19:46,652
So we have the opportunity,
as you see on the screen here,

478
00:19:46,885 --> 00:19:48,420
to see Jupiter.

479
00:19:48,420 --> 00:19:50,489
Also,
Venus, those are going to be

480
00:19:50,489 --> 00:19:52,991
two of the brightest planets
in the sky.

481
00:19:52,991 --> 00:19:54,793
But then right along there,

482
00:19:54,793 --> 00:19:57,829
Mercury, Saturn, Mars,
those are all faintly visible.

483
00:19:58,063 --> 00:19:59,598
And then even more exciting,

484
00:19:59,598 --> 00:20:01,633
there's a comet
that can be visible. Two.

485
00:20:01,633 --> 00:20:02,801
That's come 12P

486
00:20:02,801 --> 00:20:04,002
It's it's faint.

487
00:20:04,002 --> 00:20:07,773
But depending on how dark
your area is and whether you

488
00:20:07,773 --> 00:20:09,141
can see it in the sky.
Take a look.

489
00:20:09,141 --> 00:20:12,010
And this will be an interesting
planetary alignment.

490
00:20:12,010 --> 00:20:12,978
Absolutely.

491
00:20:12,978 --> 00:20:14,713
And I mean,
as if this day wasn't, you know,

492
00:20:14,713 --> 00:20:17,416
rare, exciting enough. Now we've
got this planetary alignment.

493
00:20:17,416 --> 00:20:18,617
We've got a comet. Right.

494
00:20:18,617 --> 00:20:21,486
And so fingers
crossed on clear skies.

495
00:20:21,486 --> 00:20:24,189
Now we have some more questions
coming in.

496
00:20:24,189 --> 00:20:25,624
Let's get to
a few of them. Sounds good.

497
00:20:26,792 --> 00:20:27,059
All right.

498
00:20:27,059 --> 00:20:29,394
We have
Twilight Link on YouTube.

499
00:20:29,394 --> 00:20:30,929
Who asks?

500
00:20:30,929 --> 00:20:32,564
I heard that
some eclipse glasses

501
00:20:32,564 --> 00:20:32,864
don't have

502
00:20:32,864 --> 00:20:35,867
the right specifications
to protect your eyes properly.

503
00:20:36,235 --> 00:20:39,471
When shopping for glasses,
what specifications do I need

504
00:20:39,471 --> 00:20:41,173
that will protect the eyes?

505
00:20:41,173 --> 00:20:41,840
Sure.

506
00:20:41,840 --> 00:20:42,374
When you're

507
00:20:42,374 --> 00:20:43,809
when you're buying
those glasses, of course,

508
00:20:43,809 --> 00:20:46,778
you always want to get them
from a credible source.

509
00:20:46,778 --> 00:20:49,781
One way to check is
there's a standardized number.

510
00:20:49,781 --> 00:20:51,049
It's called the ISO.

511
00:20:51,049 --> 00:20:54,386
You want to look for a number
one, two, three, one, two, two.

512
00:20:54,386 --> 00:20:55,487
And I think we have some people

513
00:20:55,487 --> 00:20:58,490
from my NASA team here
that can input that in the chart

514
00:20:58,490 --> 00:20:59,625
so that you can make sure

515
00:20:59,625 --> 00:21:01,526
that you're
getting those glasses

516
00:21:01,526 --> 00:21:03,528
with the right safety
specs as well.

517
00:21:03,528 --> 00:21:04,129
Okay, great.

518
00:21:04,129 --> 00:21:04,796
Thank you.

519
00:21:04,796 --> 00:21:05,564
Thank you for that.

520
00:21:05,564 --> 00:21:08,233
And so our next question
is from Antonio

521
00:21:08,233 --> 00:21:11,770
Rabid on YouTube,
who asks, Do we need to know?

522
00:21:11,770 --> 00:21:13,071
What do we know

523
00:21:13,071 --> 00:21:16,074
what the weather will be like
during the eclipse?

524
00:21:16,141 --> 00:21:16,441
Right.

525
00:21:16,441 --> 00:21:19,411
So the weather will depend on
whatever location you're in.

526
00:21:19,411 --> 00:21:20,245
Yeah, but

527
00:21:20,245 --> 00:21:21,446
but we just heard about that

528
00:21:21,446 --> 00:21:24,883
Eclipse Explorer map
and that actually has real time

529
00:21:24,883 --> 00:21:26,151
weather information in it

530
00:21:26,151 --> 00:21:28,420
where you go to your location
and you can find out

531
00:21:28,420 --> 00:21:30,722
what the weather will be during
the eclipse there.

532
00:21:30,722 --> 00:21:33,392
I have a
I'd say a good follow up to that

533
00:21:33,392 --> 00:21:37,129
Halloween who all 31 on YouTube
asks, Will temperature

534
00:21:37,129 --> 00:21:39,498
change during totality? yes.

535
00:21:39,498 --> 00:21:41,266
So this is something that is

536
00:21:41,266 --> 00:21:43,268
one of the most fun things
to experience.

537
00:21:43,268 --> 00:21:44,703
And we experienced this
during this.

538
00:21:44,703 --> 00:21:45,637
I know.

539
00:21:45,637 --> 00:21:47,472
It completely
blew my mind. Right.

540
00:21:47,472 --> 00:21:49,241
We're shivering up on stage
a little bit.

541
00:21:49,241 --> 00:21:50,709
Yeah. The temperature will drop.

542
00:21:50,709 --> 00:21:51,276
You know,

543
00:21:51,276 --> 00:21:53,478
the sun is blocked
and the energy,

544
00:21:53,478 --> 00:21:55,614
the heat coming from the sun
into the atmosphere,

545
00:21:55,614 --> 00:21:56,715
it changes the atmosphere.

546
00:21:56,715 --> 00:21:59,518
And that's also why
we have this Globe Observer

547
00:21:59,518 --> 00:22:01,820
public project
that we were talking about

548
00:22:01,820 --> 00:22:03,555
to measure
those temperature changes.

549
00:22:03,555 --> 00:22:04,589
So, you know,

550
00:22:04,589 --> 00:22:06,491
there's there's different things
that will affect

551
00:22:06,491 --> 00:22:08,593
how much the temperature
will change, for instance,

552
00:22:08,593 --> 00:22:10,362
how humid
it is in your location,

553
00:22:10,362 --> 00:22:12,397
but you will feel
that temperature drop

554
00:22:12,397 --> 00:22:14,800
and it can be as large
as 10 to 15 degrees.

555
00:22:14,800 --> 00:22:16,535
Yeah, I mean, even just for what

556
00:22:16,535 --> 00:22:18,570
we experienced
with annual, like you said,

557
00:22:18,570 --> 00:22:22,307
I mean, we're like shivering
on stage and then for totality

558
00:22:22,307 --> 00:22:24,943
what we expect it
to be even a little bit more.

559
00:22:24,943 --> 00:22:27,646
Yeah, probably a little bit more
than what we had for annular.

560
00:22:27,646 --> 00:22:30,215
But but even for the annular
eclipse,

561
00:22:30,215 --> 00:22:32,150
a majority of the sun
was blocked.

562
00:22:32,150 --> 00:22:35,787
So, you know, get chillier
in both of those instances.

563
00:22:36,621 --> 00:22:38,023
So I know
we touched on this earlier,

564
00:22:38,023 --> 00:22:40,625
but for those of us who are just
tuning in and watching,

565
00:22:40,625 --> 00:22:43,028
can you explain again
what is the key difference

566
00:22:43,028 --> 00:22:46,531
between an annular solar eclipse
and a total solar eclipse?

567
00:22:46,932 --> 00:22:47,366
Right.

568
00:22:47,366 --> 00:22:50,369
And so basically
a solar eclipse happens

569
00:22:50,502 --> 00:22:53,205
when the moon crosses
in front of the earth,

570
00:22:53,205 --> 00:22:55,107
in between the earth
and the sun.

571
00:22:55,107 --> 00:22:56,708
Now, for annular eclipse,

572
00:22:56,708 --> 00:22:59,711
the moon will not be blocking
the sun completely.

573
00:22:59,911 --> 00:23:01,947
It's going to leave
a ring of fire

574
00:23:01,947 --> 00:23:03,682
because the moon is just
a little bit farther

575
00:23:03,682 --> 00:23:04,316
from the earth.

576
00:23:04,316 --> 00:23:07,285
In this case, for the total
solar eclipse,

577
00:23:07,285 --> 00:23:10,288
the moon will be slightly closer
to the to the earth

578
00:23:10,288 --> 00:23:12,991
and it will block out the sun
so that we can see

579
00:23:12,991 --> 00:23:14,893
that upper atmosphere
of the sun,

580
00:23:14,893 --> 00:23:18,163
the corona, as the sun is
obstructed during that totality.

581
00:23:18,163 --> 00:23:20,399
So so the viewing here
that you see on the screen,

582
00:23:20,399 --> 00:23:22,100
that's the main difference
in the effects,

583
00:23:22,100 --> 00:23:23,869
whether you get to see
the solar corona

584
00:23:23,869 --> 00:23:26,872
or if you're looking
at the ring of fire in the sky.

585
00:23:27,038 --> 00:23:28,573
And so we've been touching
a lot about,

586
00:23:28,573 --> 00:23:31,610
you know, the path of totality
and being in totality

587
00:23:31,610 --> 00:23:33,412
for a total solar eclipse.

588
00:23:33,412 --> 00:23:35,781
And so we've got a few viewers
who want to know,

589
00:23:35,781 --> 00:23:36,081
you know

590
00:23:36,081 --> 00:23:36,815
what, if I'm not

591
00:23:36,815 --> 00:23:39,818
in the path of totality,
what can I expect on April five?

592
00:23:39,818 --> 00:23:40,152
Yeah.

593
00:23:40,152 --> 00:23:43,422
And, you know, it's just
as exciting and spectacular.

594
00:23:43,655 --> 00:23:45,524
If you're not
in the path of totality,

595
00:23:45,524 --> 00:23:49,161
you won't get to see the corona
because the sun won't be

596
00:23:49,161 --> 00:23:50,295
completely covered,

597
00:23:50,295 --> 00:23:53,265
but you'll still get
to experience a partial eclipse.

598
00:23:53,265 --> 00:23:54,766
And depending on where you are,

599
00:23:54,766 --> 00:23:57,102
the amount of that
partial eclipse will vary.

600
00:23:57,102 --> 00:23:59,037
You can go to the Eclipse
Explorer map

601
00:23:59,037 --> 00:24:01,039
to see just
what coverage you have,

602
00:24:01,039 --> 00:24:01,573
but viewing

603
00:24:01,573 --> 00:24:02,474
a partial eclipse

604
00:24:02,474 --> 00:24:03,708
is really exciting too,

605
00:24:03,708 --> 00:24:04,409
and you'll still get

606
00:24:04,409 --> 00:24:05,177
some of those

607
00:24:05,177 --> 00:24:08,246
temperature changes and
the changes around you as well.

608
00:24:08,380 --> 00:24:12,284
So whether you're in totality
or seeing that partial eclipse,

609
00:24:12,484 --> 00:24:14,286
it's still exciting. Yeah.

610
00:24:15,253 --> 00:24:18,490
So we
have Mary Suzman on YouTube.

611
00:24:18,490 --> 00:24:23,061
Who wants to know, will a cell
phone disruption expected?

612
00:24:23,061 --> 00:24:24,129
You know, will this affect

613
00:24:24,129 --> 00:24:26,298
any of our communications
during the eclipse?

614
00:24:26,298 --> 00:24:28,533
that's a
that's a great question.

615
00:24:28,533 --> 00:24:32,604
And so, you know,
there is space weather activity

616
00:24:32,604 --> 00:24:35,774
that can disrupt our cell phones
when the sun is sending

617
00:24:35,974 --> 00:24:38,210
harmful radiation
out into space.

618
00:24:38,210 --> 00:24:38,743
You know,

619
00:24:38,743 --> 00:24:40,879
it can impact
the earth's upper atmosphere

620
00:24:40,879 --> 00:24:43,515
and cause
minor blips in in cell phone.

621
00:24:43,515 --> 00:24:47,152
However, first of all,
we have different things

622
00:24:47,152 --> 00:24:48,653
in place to avoid that.

623
00:24:48,653 --> 00:24:50,355
And specifically
during the eclipse,

624
00:24:50,355 --> 00:24:52,657
that's not really something that
we have to be worried about.

625
00:24:52,657 --> 00:24:54,693
But I'm glad that people
are thinking in that direction.

626
00:24:54,693 --> 00:24:55,961
That's great. Yeah.

627
00:24:55,961 --> 00:24:56,428
And you know,

628
00:24:56,428 --> 00:24:58,864
you mentioned studying space,
weather, things like that.

629
00:24:58,864 --> 00:25:01,600
We have another viewer
who wants to know

630
00:25:01,600 --> 00:25:04,669
what missions does
NASA's have that study, the Sun,

631
00:25:04,936 --> 00:25:07,572
and what mysteries
are we hoping to solve?

632
00:25:07,572 --> 00:25:08,406
Okay.

633
00:25:08,406 --> 00:25:12,310
Well, right now, NASA's in the
Heliophysics Science division.

634
00:25:12,344 --> 00:25:15,046
We have the Parker
Solar Probe Mission.

635
00:25:15,046 --> 00:25:15,947
And this mission

636
00:25:15,947 --> 00:25:19,918
is actually flying into
the upper atmosphere of the sun.

637
00:25:19,918 --> 00:25:22,587
So that solar corona
that we're talking about viewing

638
00:25:22,587 --> 00:25:23,622
during the eclipse,

639
00:25:23,622 --> 00:25:26,591
Parker actually flies through it
and touches it.

640
00:25:26,591 --> 00:25:28,193
And this is the first spacecraft

641
00:25:28,193 --> 00:25:30,161
to ever get this close
to the sun.

642
00:25:30,161 --> 00:25:34,299
In fact, on December 24th
of this year, it will have its

643
00:25:34,299 --> 00:25:38,503
closest approach flying nine
solar radii close to the sun.

644
00:25:38,503 --> 00:25:41,306
And that might sound far,
but it's actually the closest

645
00:25:41,306 --> 00:25:43,108
that a spacecraft
has ever gotten

646
00:25:43,108 --> 00:25:44,709
so that we can really figure out

647
00:25:44,709 --> 00:25:47,312
how the physics operates
in this region.

648
00:25:47,312 --> 00:25:49,981
Okay. Now, nine solar radii.

649
00:25:49,981 --> 00:25:52,851
Can you give us an idea? yeah.

650
00:25:52,851 --> 00:25:55,420
So I'm going to ask my team here
to give us some stats on that

651
00:25:55,420 --> 00:25:57,222
and put it in the test
just so we can get it

652
00:25:57,222 --> 00:26:00,058
maybe into miles
for people to understand. But.

653
00:26:00,058 --> 00:26:02,861
But it is much closer
to the sun than we are

654
00:26:02,861 --> 00:26:05,797
so that we can touch
the atmosphere there. Awesome.

655
00:26:05,797 --> 00:26:08,366
And so our next question
actually, again, has to deal

656
00:26:08,366 --> 00:26:10,268
with the sun and its activity.

657
00:26:10,268 --> 00:26:11,937
It's from Fox
McCloud on YouTube.

658
00:26:11,937 --> 00:26:12,837
Who wants to know

659
00:26:12,837 --> 00:26:15,840
what we see solar flares
do during the eclipse?

660
00:26:16,541 --> 00:26:18,944
That could very well happen now.

661
00:26:18,944 --> 00:26:23,148
The sun has an 11 year activity
cycle where the activity

662
00:26:23,148 --> 00:26:26,918
is ramping up and down,
and when it ramps up, we see

663
00:26:26,918 --> 00:26:28,453
more of those solar flares.

664
00:26:28,453 --> 00:26:31,456
We see coronal mass
ejections and more.

665
00:26:31,489 --> 00:26:35,493
And right now we are gearing
towards solar maximum,

666
00:26:35,493 --> 00:26:38,863
which means we have more of this
solar activity happening.

667
00:26:38,997 --> 00:26:41,266
And you can see the explosive
flares occurring.

668
00:26:41,266 --> 00:26:44,502
So if we were ever
to see some of this activity

669
00:26:44,502 --> 00:26:45,704
during the eclipse,

670
00:26:45,704 --> 00:26:46,871
this would be the time

671
00:26:46,871 --> 00:26:49,240
because we have tons of activity
happening.

672
00:26:49,240 --> 00:26:52,644
So fingers crossed with your
your solar telescopes

673
00:26:52,644 --> 00:26:55,647
or your viewing that we can see
some solar flares erupting.

674
00:26:56,381 --> 00:26:58,683
Is there any certain science

675
00:26:58,683 --> 00:27:02,153
we can only conduct
during a total solar eclipse?

676
00:27:02,187 --> 00:27:03,855
This is another viewer
on YouTube.

677
00:27:03,855 --> 00:27:05,123
Okay. Right.

678
00:27:05,123 --> 00:27:08,093
So some of the experiments
that we have going on with NASA

679
00:27:08,193 --> 00:27:11,196
are things that we can only do
during the eclipse.

680
00:27:11,329 --> 00:27:13,098
One project that I'll talk

681
00:27:13,098 --> 00:27:16,835
about is looking at ham
radio operations

682
00:27:16,935 --> 00:27:20,372
and actually how the radio
signals are impacted

683
00:27:20,805 --> 00:27:22,273
over the atmosphere.

684
00:27:22,273 --> 00:27:24,509
So the radio signals will be
sent over the atmosphere.

685
00:27:24,509 --> 00:27:27,412
And during the eclipse,
the atmosphere changes.

686
00:27:27,412 --> 00:27:28,613
And what we can do

687
00:27:28,613 --> 00:27:32,083
is have these ham radio
operators send their signals

688
00:27:32,250 --> 00:27:35,153
to really understand
the impacts of the sun

689
00:27:35,153 --> 00:27:36,388
on the upper atmosphere

690
00:27:36,388 --> 00:27:39,391
and how it might change
those radio communications.

691
00:27:40,158 --> 00:27:43,528
And my follow up question,
we have Mel on YouTube

692
00:27:43,528 --> 00:27:45,463
who going back to, you know,
some eclipse

693
00:27:45,463 --> 00:27:49,668
safety wants to know if we are
not in the path of totality,

694
00:27:49,668 --> 00:27:51,503
do you still need to
wear those eclipse glasses?

695
00:27:52,671 --> 00:27:54,372
Yes, the short answer is yes.

696
00:27:54,372 --> 00:27:57,342
Actually, if you're not
in the path of totality,

697
00:27:57,575 --> 00:28:00,578
you always need to be using
those viewing glasses

698
00:28:00,578 --> 00:28:03,381
or kind of your at home products
like a calendar

699
00:28:03,381 --> 00:28:06,384
that allows the sun's light
to come through the holes.

700
00:28:06,584 --> 00:28:08,920
You can make your own
pinhole projection

701
00:28:08,920 --> 00:28:10,321
something that's really easy.

702
00:28:10,321 --> 00:28:11,923
You can just take your hand and

703
00:28:11,923 --> 00:28:15,226
and kind of weave them together
to create your own holes

704
00:28:15,226 --> 00:28:17,128
and put it on the ground
towards the ground.

705
00:28:17,128 --> 00:28:19,597
You let the sun come through
and you look at the ground.

706
00:28:19,597 --> 00:28:20,799
That's one way to see this.

707
00:28:20,799 --> 00:28:22,233
And what are you seeing
on the ground then?

708
00:28:22,233 --> 00:28:23,068
At that point,

709
00:28:23,068 --> 00:28:26,705
you'll actually see what looks
like the crescent sun's that.

710
00:28:26,705 --> 00:28:28,273
That is the eclipse
that's happening.

711
00:28:28,273 --> 00:28:30,575
So you'll see the partial
eclipse being projected

712
00:28:30,575 --> 00:28:31,476
onto the ground.

713
00:28:32,677 --> 00:28:35,680
And so my next question is from

714
00:28:36,247 --> 00:28:36,581
okay,

715
00:28:36,581 --> 00:28:38,149
we have somebody
that actually has a follow up

716
00:28:38,149 --> 00:28:40,885
to our conversation earlier
about the solar flares. Okay.

717
00:28:40,885 --> 00:28:42,187
So they want to know,

718
00:28:42,187 --> 00:28:45,190
are solar flares
dangerous to us on Earth?

719
00:28:45,690 --> 00:28:47,358
Great.
this is a great question.

720
00:28:47,358 --> 00:28:48,960
So the Earth

721
00:28:48,960 --> 00:28:50,195
has a magnetic field

722
00:28:50,195 --> 00:28:53,898
that shields us from a lot of
these, you know, harmful

723
00:28:53,898 --> 00:28:56,234
radiation particles
that come from the sun.

724
00:28:56,234 --> 00:28:57,836
So for us, you know,

725
00:28:57,836 --> 00:28:58,803
not first of all,

726
00:28:58,803 --> 00:29:01,940
not every solar flare
will be directed towards Earth.

727
00:29:01,940 --> 00:29:03,441
They're direct in all different

728
00:29:03,441 --> 00:29:05,410
directions,
towards different planets

729
00:29:05,410 --> 00:29:07,512
or not
even towards any planets at all.

730
00:29:07,512 --> 00:29:08,947
The ones that are directed

731
00:29:08,947 --> 00:29:09,948
towards Earth

732
00:29:09,948 --> 00:29:11,516
really are magnetic fields,

733
00:29:11,516 --> 00:29:13,852
and our atmosphere works
to shield us

734
00:29:13,852 --> 00:29:15,987
from a majority
of those particles.

735
00:29:15,987 --> 00:29:19,324
Now, when we have astronauts
in space, we do have

736
00:29:19,524 --> 00:29:22,494
different protective measures
that we take to protect them.

737
00:29:22,494 --> 00:29:26,397
We work on predicting when
these flares might take place,

738
00:29:26,564 --> 00:29:27,899
when they might arrive,

739
00:29:27,899 --> 00:29:30,902
and our astronauts
have radiation covering that.

740
00:29:30,902 --> 00:29:33,638
They can actually shield
themselves if they need to.

741
00:29:33,638 --> 00:29:35,473
And so I actually want to
stay on that topic.

742
00:29:35,473 --> 00:29:36,508
That's a great follow up,

743
00:29:36,508 --> 00:29:38,643
but I have a great follow
up to that topic.

744
00:29:38,643 --> 00:29:41,646
For someone who wants to know,
how does the study of the Sun,

745
00:29:41,646 --> 00:29:43,214
I guess, Helio physicists

746
00:29:43,214 --> 00:29:47,018
work with our efforts
of sending humans into space

747
00:29:47,018 --> 00:29:49,220
to the moon,
you know, and even farther

748
00:29:49,220 --> 00:29:51,322
into the solar system, Right?

749
00:29:51,322 --> 00:29:54,259
Well, personally,
some of the research that I do

750
00:29:54,259 --> 00:29:58,163
is on Mars and understanding
how the sun impacts Mars.

751
00:29:58,396 --> 00:30:01,199
And we want to understand this
because

752
00:30:01,199 --> 00:30:03,968
one day we're aiming
to send humans to Mars.

753
00:30:03,968 --> 00:30:07,472
So we really need to understand
how this radiation

754
00:30:07,872 --> 00:30:08,773
coming from the sun

755
00:30:08,773 --> 00:30:10,742
or these solar flares
that we're talking about,

756
00:30:10,742 --> 00:30:13,144
how they might impact
the different planets

757
00:30:13,144 --> 00:30:15,013
we can take data from different
NASA's

758
00:30:15,013 --> 00:30:18,249
missions that are studying
these planets to really assess

759
00:30:18,383 --> 00:30:21,152
how the atmosphere or a planet's
magnetic field

760
00:30:21,152 --> 00:30:24,155
might be impacted by particles
coming from the sun.

761
00:30:24,155 --> 00:30:25,690
And then we create tools

762
00:30:25,690 --> 00:30:28,092
that we can use
to protect our astronauts

763
00:30:28,092 --> 00:30:29,260
when they go to travel

764
00:30:29,260 --> 00:30:30,929
to other places,
such as the moon or Mars.

765
00:30:32,063 --> 00:30:33,164
So another

766
00:30:33,164 --> 00:30:35,366
follow up inspector on
YouTube wants to know,

767
00:30:35,366 --> 00:30:37,235
will the International Space
Station

768
00:30:37,235 --> 00:30:40,238
be affected by this
total solar eclipse then?

769
00:30:41,005 --> 00:30:43,608
If you're for astronauts
that are on the space station

770
00:30:43,608 --> 00:30:44,542
during the eclipse,

771
00:30:44,542 --> 00:30:45,844
if it is kind of

772
00:30:45,844 --> 00:30:49,280
crossing over the US region
during the time of the eclipse,

773
00:30:49,581 --> 00:30:51,115
the astronauts are able
to view it

774
00:30:51,115 --> 00:30:53,017
from a different vantage point.

775
00:30:53,017 --> 00:30:55,453
Now they're looking down
at the surface of the earth,

776
00:30:55,453 --> 00:31:00,124
so they would see the moon's
shadow moving across earth.

777
00:31:00,425 --> 00:31:00,758
Yeah,

778
00:31:00,758 --> 00:31:02,627
so it's a different perspective
than what we're seeing.

779
00:31:02,627 --> 00:31:03,828
You could see it on the screen
there.

780
00:31:03,828 --> 00:31:06,331
That's that's from
one of the previous eclipses.

781
00:31:06,331 --> 00:31:08,499
That's the moon's shadow
actually being cast

782
00:31:08,499 --> 00:31:09,767
onto the surface of Earth.

783
00:31:09,767 --> 00:31:10,235
There you go.

784
00:31:10,235 --> 00:31:12,070
As seen from the space station.

785
00:31:12,070 --> 00:31:15,773
So that's a great view and
a unique perspective to have.

786
00:31:15,773 --> 00:31:18,309
That is that is
and it's really amazing

787
00:31:18,309 --> 00:31:20,879
that we are able
to, you know, have photos

788
00:31:20,879 --> 00:31:23,281
from both the ground and space

789
00:31:23,281 --> 00:31:25,183
with the International Space
Station.

790
00:31:25,183 --> 00:31:28,686
And Mary Hart on YouTube
wants to know for the total

791
00:31:28,853 --> 00:31:31,122
solar eclipse
this year, does NASA's plan

792
00:31:31,122 --> 00:31:33,958
to photograph it
from the ground at all? Yes.

793
00:31:33,958 --> 00:31:37,695
So actually, this is something
where the public can once again

794
00:31:37,695 --> 00:31:40,031
get involved
as long as you have the proper

795
00:31:40,031 --> 00:31:43,801
solar filter and a telescope,
you can take pictures of it.

796
00:31:44,903 --> 00:31:46,471
During totality, as we said,

797
00:31:46,471 --> 00:31:48,373
you can use your phone
to take pictures of it.

798
00:31:48,373 --> 00:31:49,741
It's safe during totality

799
00:31:49,741 --> 00:31:52,110
to use your phone
to take pictures, photographs.

800
00:31:52,110 --> 00:31:55,280
We have amateur astronomers
and whatnot as well.

801
00:31:55,280 --> 00:31:58,650
So these are ways that 
you don't have to be a NASA

802
00:31:58,650 --> 00:32:00,151
scientist to photograph it

803
00:32:00,151 --> 00:32:02,086
as long as you know how to do it
safely.

804
00:32:02,086 --> 00:32:05,123
And some of these images
are just stunning to look at.

805
00:32:05,623 --> 00:32:06,324
Absolutely.

806
00:32:06,324 --> 00:32:09,427
And I mean, this is another good
reminder of the volunteer

807
00:32:09,427 --> 00:32:10,795
project
that you mentioned earlier.

808
00:32:10,795 --> 00:32:11,996
Sun sketcher, right,

809
00:32:11,996 --> 00:32:13,531
to where you download,

810
00:32:13,531 --> 00:32:15,600
download an app,
put your phone down

811
00:32:15,600 --> 00:32:17,769
and you're able to photograph
the eclipse.

812
00:32:17,769 --> 00:32:21,572
Contribute to NASA's science
and, you know, enjoy the moment

813
00:32:22,006 --> 00:32:24,742
in the present moment. Yeah. So.

814
00:32:24,742 --> 00:32:25,677
this is a good one.

815
00:32:25,677 --> 00:32:28,212
My next question is 
what was it like

816
00:32:28,212 --> 00:32:31,182
for you to watch the annular
solar eclipse last year?

817
00:32:32,116 --> 00:32:33,985
Well, we were together, so.

818
00:32:33,985 --> 00:32:36,454
I know, I know.
That's why I love the page.

819
00:32:36,454 --> 00:32:39,657
I will tell you, my
my experience with the annular

820
00:32:39,657 --> 00:32:43,027
eclipse was so much different
than the 2017.

821
00:32:43,061 --> 00:32:45,263
Set your first.
That was my first year.

822
00:32:45,263 --> 00:32:46,431
That's right. Yeah.

823
00:32:46,431 --> 00:32:50,635
And I will say, viewing it,
it almost felt fake.

824
00:32:50,702 --> 00:32:51,736
It didn't seem real

825
00:32:51,736 --> 00:32:54,739
to see the moon
kind of coming in the sun.

826
00:32:54,772 --> 00:32:55,206
Yeah.

827
00:32:55,206 --> 00:32:58,743
But on top of that, it was the
crowd around us that I remember.

828
00:32:58,743 --> 00:33:01,946
I remember, you know, the minute
before and clarity.

829
00:33:02,146 --> 00:33:05,083
People were just so excited
and cheering so loudly

830
00:33:05,083 --> 00:33:07,018
that it felt like
this experience

831
00:33:07,018 --> 00:33:08,820
that we were
all sharing together.

832
00:33:08,820 --> 00:33:11,122
And that was a lot of the fun
to it, too.

833
00:33:11,122 --> 00:33:12,490
You know,
I think we were talking about

834
00:33:12,490 --> 00:33:14,926
how we got goosebumps
during annular.

835
00:33:14,926 --> 00:33:16,194
It was really emotional.

836
00:33:16,194 --> 00:33:19,130
I was not expecting it
to be so emotional.

837
00:33:19,130 --> 00:33:20,565
I mean, it was really

838
00:33:20,565 --> 00:33:23,568
just this perspective shift,
right, to where you're

839
00:33:24,235 --> 00:33:26,637
you're like, wow, I'm on Earth
and we're part of this

840
00:33:26,637 --> 00:33:29,640
larger system
that's moving in the universe.

841
00:33:29,640 --> 00:33:32,977
And this will be my first total
solar eclipse.

842
00:33:33,044 --> 00:33:35,847
So I'm glad that we get to
experience this again together.

843
00:33:35,847 --> 00:33:37,015
Yeah.

844
00:33:37,015 --> 00:33:40,084
So our next question is from
Bill Harvard on YouTube.

845
00:33:40,084 --> 00:33:43,087
Who wants to know, will an
eclipse like this happen again?

846
00:33:43,721 --> 00:33:44,389
Right.

847
00:33:44,389 --> 00:33:47,392
We will have other total
solar eclipses happen.

848
00:33:47,525 --> 00:33:50,561
The next one
that will cross across

849
00:33:50,661 --> 00:33:53,931
the United States
won't be for another 20 years.

850
00:33:54,132 --> 00:33:56,534
So this will be kind
of your last opportunity

851
00:33:56,534 --> 00:33:58,770
for a few decades
if you want to see it

852
00:33:58,770 --> 00:34:00,905
within
kind of the contiguous U.S.

853
00:34:00,905 --> 00:34:03,608
But eclipses
will occur elsewhere.

854
00:34:03,608 --> 00:34:07,845
And, you know, most often
it will be over the ocean

855
00:34:07,845 --> 00:34:10,848
just because the earth
has more water than land.

856
00:34:10,848 --> 00:34:13,484
But but yeah, we do have total
solar eclipse is Now,

857
00:34:13,484 --> 00:34:18,589
one thing that I will add,
though, is the moon is slowly

858
00:34:18,623 --> 00:34:21,225
moving away from the earth
very slowly,

859
00:34:21,225 --> 00:34:24,462
which means kind of many,
many years from now,

860
00:34:24,829 --> 00:34:28,466
there won't be total
solar eclipses at Earth once

861
00:34:28,466 --> 00:34:29,634
the moon is far,

862
00:34:29,634 --> 00:34:32,303
far enough away that it can't
completely block out the sun.

863
00:34:32,303 --> 00:34:35,273
So it's really special right now
that we're able to enjoy this.

864
00:34:35,273 --> 00:34:38,176
But that change will not
take place in our lifetime.

865
00:34:38,176 --> 00:34:41,179
Will It will be quite some time
until it actually happens.

866
00:34:41,512 --> 00:34:42,914
That is a very fun fact.

867
00:34:42,914 --> 00:34:44,982
That was actually,
you know, we have Stephen Pope,

868
00:34:44,982 --> 00:34:47,351
Papa on YouTube
who wanted to know,

869
00:34:47,351 --> 00:34:50,054
does that mean in the far
future

870
00:34:50,054 --> 00:34:51,622
will eclipses be much different?

871
00:34:51,622 --> 00:34:53,324
And so like you're saying,

872
00:34:53,324 --> 00:34:56,094
there is a day and age
where we won't have these

873
00:34:56,094 --> 00:34:57,462
at all anymore. Right.

874
00:34:57,462 --> 00:35:00,498
So we are really here
during the right time,

875
00:35:00,531 --> 00:35:03,501
the right moment to witness
something like this altogether.

876
00:35:03,501 --> 00:35:03,868
Yeah.

877
00:35:03,868 --> 00:35:06,938
And I mean, the moon,
it's moving eight centimeters

878
00:35:07,004 --> 00:35:09,674
per year away.
So very, very slow.

879
00:35:09,674 --> 00:35:11,209
We don't have to worry by it.

880
00:35:11,209 --> 00:35:14,212
But if we were on Mars,
for example,

881
00:35:14,212 --> 00:35:15,980
Mars has solar eclipses.

882
00:35:15,980 --> 00:35:19,317
When when it's Moon's cross
in between Mars and the sun.

883
00:35:19,517 --> 00:35:21,919
However,
they're not as fascinating

884
00:35:21,919 --> 00:35:24,255
as our eclipses
because they're not total.

885
00:35:24,255 --> 00:35:27,258
It almost looks like a transit
of a planet

886
00:35:27,258 --> 00:35:29,494
moving across the sun
because it doesn't cover it.

887
00:35:29,494 --> 00:35:31,596
It doesn't cover the sun
completely.

888
00:35:31,596 --> 00:35:33,664
So you can just see
the moon crossing

889
00:35:33,664 --> 00:35:36,134
and you can almost think of it
as an annular eclipse.

890
00:35:36,134 --> 00:35:39,137
But the ring is much bigger
than what we see here.

891
00:35:39,237 --> 00:35:42,473
So earlier in the show,
you touched on Bailey's beads

892
00:35:42,473 --> 00:35:45,643
and these different
different types of things

893
00:35:45,643 --> 00:35:47,178
we might see
during today's event.

894
00:35:47,178 --> 00:35:51,182
And we have 
we have another viewer

895
00:35:51,182 --> 00:35:52,350
that wants to know

896
00:35:52,350 --> 00:35:55,987
about these special features
that only happen during a total

897
00:35:55,987 --> 00:35:56,988
solar eclipse.

898
00:35:56,988 --> 00:35:59,157
Can you like the diamond ring
effect?

899
00:35:59,157 --> 00:35:59,957
Bailey's beads.

900
00:35:59,957 --> 00:36:02,393
Can you explain those
for us? Sure.

901
00:36:02,393 --> 00:36:05,263
So on the surface of the moon,
you know, there are craters,

902
00:36:05,263 --> 00:36:07,064
there are peaks,
there are valleys.

903
00:36:07,064 --> 00:36:10,635
And when these bailey beads or
diamond rings occur,

904
00:36:10,835 --> 00:36:12,069
that's where you see

905
00:36:12,069 --> 00:36:15,072
the light of the sun
just kind of piercing through

906
00:36:15,173 --> 00:36:18,976
some of these surface features
of the moon and the sun.

907
00:36:19,010 --> 00:36:19,377
The sun

908
00:36:19,377 --> 00:36:22,380
just kind of peaks out in
between the peaks in the valleys

909
00:36:22,413 --> 00:36:25,783
so that you can get that shiny
diamond ring effect

910
00:36:26,050 --> 00:36:28,920
and and that really helps us
to understand

911
00:36:28,920 --> 00:36:31,422
kind of the topography
of the moon.

912
00:36:31,422 --> 00:36:33,791
But the moon and and the surface

913
00:36:33,791 --> 00:36:36,327
features have also been studied
very well

914
00:36:36,327 --> 00:36:39,463
by NASA's Lunar Reconnaissance
Orbiter Mission.

915
00:36:39,664 --> 00:36:42,833
So it's fine to kind of
see how we you know,

916
00:36:42,867 --> 00:36:44,735
we make these measurements
with our missions,

917
00:36:44,735 --> 00:36:48,005
and then we can also study them
during events like the eclipse.

918
00:36:48,606 --> 00:36:50,174
And can you remind us
what's the difference

919
00:36:50,174 --> 00:36:52,343
between Bailey's beads
and the diamond effect?

920
00:36:52,343 --> 00:36:54,812
Are those the same thing?
They're very similar.

921
00:36:54,812 --> 00:36:55,580
Yes. So.

922
00:36:55,580 --> 00:36:57,582
So the diamond ring
effect is more of that

923
00:36:57,582 --> 00:37:00,017
kind of wow factor,
that brighter shine

924
00:37:00,017 --> 00:37:01,085
where Bailey's beads,

925
00:37:01,085 --> 00:37:03,721
you can see a few of them
almost bubbling across

926
00:37:03,721 --> 00:37:05,323
the surface
is what it looks like.

927
00:37:05,323 --> 00:37:06,123
So they're similar

928
00:37:06,123 --> 00:37:07,892
and they're caused
by similar effects,

929
00:37:07,892 --> 00:37:10,895
but kind of just a difference
in their characteristics.

930
00:37:11,596 --> 00:37:14,498
And we have Katie Fisher
on Facebook who wants to know,

931
00:37:14,498 --> 00:37:17,802
will the solar total
solar eclipse affect the tides?

932
00:37:18,569 --> 00:37:19,003
Okay.

933
00:37:19,003 --> 00:37:20,738
So the total solar eclipse

934
00:37:20,738 --> 00:37:23,774
will not affect the tides
really, that that's going to

935
00:37:23,808 --> 00:37:27,511
be affected by the distance
that the moon is from the earth.

936
00:37:27,545 --> 00:37:31,415
So so as I said,
the moon is slowly moving away

937
00:37:31,415 --> 00:37:33,551
from the earth centimeters
every year

938
00:37:33,551 --> 00:37:37,321
now over a greater time scale
that will affect the tides,

939
00:37:37,321 --> 00:37:39,991
but not during the total
solar eclipse.

940
00:37:39,991 --> 00:37:43,494
And I actually our great team
moderating

941
00:37:43,494 --> 00:37:44,695
earlier got us an answer.

942
00:37:44,695 --> 00:37:46,831
You mentioned how Parker
Solar Probe.

943
00:37:46,831 --> 00:37:47,365
Great.

944
00:37:47,365 --> 00:37:48,599
On December 24th

945
00:37:48,599 --> 00:37:51,602
is going to make its closest
approach to the sun

946
00:37:51,736 --> 00:37:54,505
at about nine solar radii

947
00:37:54,505 --> 00:37:57,508
that is 3.9 million miles.

948
00:37:57,541 --> 00:38:00,544
There we go. Yes, absolutely.

949
00:38:00,611 --> 00:38:04,615
And so our next question is from
Lila Coles Avery on Facebook.

950
00:38:04,615 --> 00:38:07,451
Who wants to know,
can I look at this safely?

951
00:38:07,451 --> 00:38:11,622
A total solar eclipse through
a telescope from North Carolina.

952
00:38:12,423 --> 00:38:12,823
Okay.

953
00:38:12,823 --> 00:38:16,594
So it depends on your location
and if you're in the

954
00:38:16,594 --> 00:38:17,595
path of totality.

955
00:38:17,595 --> 00:38:21,332
So check out our Eclipse
Explorer map to see

956
00:38:21,332 --> 00:38:25,069
what kind of coverage you'll get
if you have to totality,

957
00:38:25,269 --> 00:38:28,873
then you can actually use your
telescope to look at the sun

958
00:38:29,040 --> 00:38:30,241
without a filter.

959
00:38:30,241 --> 00:38:33,544
However,
if you're in that partial area,

960
00:38:33,544 --> 00:38:34,445
partial eclipse,

961
00:38:34,445 --> 00:38:37,448
then you can use your telescope,
but you just need to make sure

962
00:38:37,615 --> 00:38:39,850
that you have 
that path of totality.

963
00:38:39,850 --> 00:38:41,986
And so as you're looking at the
the map here,

964
00:38:41,986 --> 00:38:44,588
showing the path of totality,
you know, North

965
00:38:44,588 --> 00:38:47,091
Carolina is going to get
that partial eclipse.

966
00:38:47,091 --> 00:38:48,559
So just make sure that you have

967
00:38:48,559 --> 00:38:50,695
a proper filter
on your telescope

968
00:38:50,695 --> 00:38:52,663
when you're viewing the eclipse.

969
00:38:52,663 --> 00:38:52,963
Okay.

970
00:38:52,963 --> 00:38:56,500
And still in the same light
of viewing, photographing

971
00:38:56,500 --> 00:38:59,737
the eclipse, we have a hat
wearing duck on YouTube.

972
00:39:00,137 --> 00:39:01,038
Who asks,

973
00:39:01,038 --> 00:39:04,709
Would it damage my phone camera
if I tried to take a timelapse

974
00:39:05,042 --> 00:39:08,346
of the partial eclipse
through eclipse glasses?

975
00:39:09,080 --> 00:39:09,480
Okay.

976
00:39:09,480 --> 00:39:12,917
That is one technique
that people use is actually.

977
00:39:13,084 --> 00:39:15,086
So you have your eclipse glasses
that you can

978
00:39:15,086 --> 00:39:16,153
hold up to your eyes.

979
00:39:16,153 --> 00:39:19,023
Now you can put that
in front of your phone

980
00:39:19,023 --> 00:39:21,726
to safely the phone down,
put the glasses.

981
00:39:21,726 --> 00:39:23,961
That's
what I would recommend. Yeah.

982
00:39:23,961 --> 00:39:24,462
Because

983
00:39:24,462 --> 00:39:26,364
the one thing
you don't want to do

984
00:39:26,364 --> 00:39:28,299
is put your glasses
onto your phone

985
00:39:28,299 --> 00:39:31,902
and then accidentally, you know,
still try to look at the sun

986
00:39:32,036 --> 00:39:32,803
when it's partial.

987
00:39:32,803 --> 00:39:35,339
So you can use those
viewing glasses as a filter.

988
00:39:35,339 --> 00:39:36,440
But just be careful.

989
00:39:36,440 --> 00:39:38,676
You know, anytime
you're you're doing this.

990
00:39:38,676 --> 00:39:39,877
Absolutely.

991
00:39:39,877 --> 00:39:42,546
And so sticking again,
kind of focusing on this

992
00:39:42,546 --> 00:39:43,914
path of totality.

993
00:39:43,914 --> 00:39:46,751
We have James Finn on Facebook
who asks,

994
00:39:46,751 --> 00:39:50,254
how dark does it actually get
in the path of totality?

995
00:39:50,955 --> 00:39:54,191
It's best described
as a dusk feeling.

996
00:39:54,191 --> 00:39:57,461
You'll you'll definitely see
the change.

997
00:39:57,461 --> 00:39:58,462
I mean, it's not going to be

998
00:39:58,462 --> 00:40:01,465
completely nighttime
because some of the sun's light

999
00:40:01,565 --> 00:40:05,403
will still scattered
around the moon and light up

1000
00:40:05,536 --> 00:40:07,238
just a little bit
of the atmosphere,

1001
00:40:07,238 --> 00:40:08,472
but it gets pretty dark.

1002
00:40:08,472 --> 00:40:10,207
It's pretty impressive.

1003
00:40:10,207 --> 00:40:11,275
Darker than what we saw

1004
00:40:11,275 --> 00:40:13,477
for the annular eclipse,
that's for sure.

1005
00:40:13,477 --> 00:40:14,812
Now, for those of us

1006
00:40:14,812 --> 00:40:18,482
who have not witnessed
a total solar eclipse before,

1007
00:40:18,783 --> 00:40:19,183
you know,

1008
00:40:19,183 --> 00:40:19,850
could you

1009
00:40:19,850 --> 00:40:22,853
tell us about your experience
seeing one for the first time?

1010
00:40:23,320 --> 00:40:26,023
My my total solar eclipse.

1011
00:40:26,023 --> 00:40:29,026
So I was in Nashville in 2017

1012
00:40:29,260 --> 00:40:32,062
with my family and we were

1013
00:40:32,062 --> 00:40:35,032
we were kind of off the beaten
path in the middle of nowhere.

1014
00:40:35,032 --> 00:40:37,201
So we got to really experience

1015
00:40:37,201 --> 00:40:39,370
the nature effect,
seeing the birds

1016
00:40:39,370 --> 00:40:41,572
go to the trees,
hearing the crickets come out.

1017
00:40:41,572 --> 00:40:45,543
But I do remember once
that totality occurred,

1018
00:40:45,643 --> 00:40:47,511
we were all just kind of
looking at the sky

1019
00:40:47,511 --> 00:40:50,014
and getting screaming
and getting excited, oohing.

1020
00:40:50,014 --> 00:40:53,417
And I think it was it's
just something that until you

1021
00:40:53,417 --> 00:40:56,687
experience it, it's really hard
to imagine, but it's so great.

1022
00:40:57,054 --> 00:41:00,057
So it's different
than looking at a photo of it

1023
00:41:00,057 --> 00:41:01,125
or something like, Yes,

1024
00:41:01,125 --> 00:41:05,162
because as we talked
about earlier, it is kind of all

1025
00:41:05,162 --> 00:41:06,163
the senses, right?

1026
00:41:06,163 --> 00:41:10,334
So you're seeing the eclipse,
but you're also hearing changes

1027
00:41:10,334 --> 00:41:10,835
in nature.

1028
00:41:10,835 --> 00:41:12,837
You're feeling
the temperature drop

1029
00:41:12,837 --> 00:41:14,605
and maybe the winds
pick up a little bit.

1030
00:41:14,605 --> 00:41:17,975
In fact, during the the 2017

1031
00:41:17,975 --> 00:41:21,011
eclipse, in my experience,
we had some clouds

1032
00:41:21,078 --> 00:41:24,582
start to cover the sky
just before totality.

1033
00:41:24,748 --> 00:41:26,417
And then as soon as totality

1034
00:41:26,417 --> 00:41:29,253
hit, those clouds
dissipated and went away.

1035
00:41:29,253 --> 00:41:30,354
So we got to see

1036
00:41:30,354 --> 00:41:33,357
the changes on the atmosphere
with our eyes as well.

1037
00:41:33,724 --> 00:41:35,960
And we covered this
a little bit before,

1038
00:41:35,960 --> 00:41:37,061
but can you tell us

1039
00:41:37,061 --> 00:41:40,197
about some of the experiments
that Nassar is running

1040
00:41:40,197 --> 00:41:43,200
and can only run during a total
solar eclipse?

1041
00:41:43,734 --> 00:41:47,204
Yes. So so let's talk
about the sounding rockets.

1042
00:41:47,204 --> 00:41:50,007
That's actually something
that we haven't hit on yet.

1043
00:41:50,007 --> 00:41:53,511
So we have three sounding
rockets that will be launching

1044
00:41:53,644 --> 00:41:55,713
from our Wallops
Flight facility,

1045
00:41:55,713 --> 00:41:57,781
which is in Chincoteague,
Virginia.

1046
00:41:57,781 --> 00:42:00,484
And these three rockets
will be launching

1047
00:42:00,484 --> 00:42:04,054
one will take off 35 minutes
before totality.

1048
00:42:04,321 --> 00:42:06,457
One will take off
during totality

1049
00:42:06,457 --> 00:42:09,026
and then finally,
35 minutes after.

1050
00:42:09,026 --> 00:42:10,761
And what
we're trying to study here

1051
00:42:10,761 --> 00:42:12,997
is basically measuring directly

1052
00:42:12,997 --> 00:42:15,132
the changes in the upper
atmosphere,

1053
00:42:15,132 --> 00:42:17,234
where the where the rockets
are going to reach.

1054
00:42:17,234 --> 00:42:19,370
And we're doing it
before, during and after.

1055
00:42:19,370 --> 00:42:22,606
So we can see the change
kind of in how it propagates.

1056
00:42:22,640 --> 00:42:25,075
Now, where these rockets are
launching,

1057
00:42:25,075 --> 00:42:27,745
it's not actually going to be
within the path,

1058
00:42:27,745 --> 00:42:30,814
but as the moon and its shadow,
as the shadow of the moon

1059
00:42:30,814 --> 00:42:32,816
is moving across that path,

1060
00:42:32,816 --> 00:42:35,553
it's having changes
in the local atmosphere

1061
00:42:35,553 --> 00:42:38,355
and they kind of propagate out
almost like a boat

1062
00:42:38,355 --> 00:42:40,324
going through the water
and making a wave.

1063
00:42:40,324 --> 00:42:41,825
Yeah, it's
kind of the same thing.

1064
00:42:41,825 --> 00:42:43,027
So we're trying to see

1065
00:42:43,027 --> 00:42:46,030
how those changes
propagate out in the atmosphere.

1066
00:42:46,597 --> 00:42:49,600
So we've got a plane, we've
got rocket and that rocket.

1067
00:42:49,633 --> 00:42:52,536
Is there any other,
you know, instrument

1068
00:42:52,536 --> 00:42:56,373
that NASA's planning to use
to study the solar cups?

1069
00:42:56,373 --> 00:42:59,243
I know last year for
the annular, we had balloons.

1070
00:42:59,243 --> 00:43:00,277
Is there anything like that?

1071
00:43:00,277 --> 00:43:04,148
There are balloon projects, in
fact, led by various schools.

1072
00:43:04,148 --> 00:43:05,983
We have a ton of balloons
that will be launching

1073
00:43:05,983 --> 00:43:08,419
science balloons
measuring all over.

1074
00:43:08,419 --> 00:43:10,454
And so that's something
that you see on the screen here.

1075
00:43:10,454 --> 00:43:11,722
Some of the students
getting ready

1076
00:43:11,722 --> 00:43:14,191
for those balloon experiments.

1077
00:43:14,191 --> 00:43:18,562
There's also radio
telescopes in California

1078
00:43:18,762 --> 00:43:21,565
that will be kind of measuring
those radio

1079
00:43:21,565 --> 00:43:25,169
waves coming from the sun,
because any active regions

1080
00:43:25,336 --> 00:43:27,605
that are occurring on the sun
at that time,

1081
00:43:27,605 --> 00:43:29,873
they're going
to be covered up by the moon.

1082
00:43:29,873 --> 00:43:33,277
So as as the radio telescope
is just looking at the sun

1083
00:43:33,477 --> 00:43:35,312
and these active regions
are covered,

1084
00:43:35,312 --> 00:43:36,347
we can see

1085
00:43:36,347 --> 00:43:38,649
it's turning them on and off
so we can see

1086
00:43:38,649 --> 00:43:41,619
where the waves are coming from
and where they are

1087
00:43:41,619 --> 00:43:44,021
and to to understand
what the sources are, basically.

1088
00:43:44,021 --> 00:43:46,290
So we're studying this
from every single

1089
00:43:46,290 --> 00:43:49,293
everything that we can
possibly do that is great.

1090
00:43:49,426 --> 00:43:53,564
So our next question is from 
Happy Thumb Gaming on YouTube.

1091
00:43:53,564 --> 00:43:56,233
Who wants to know
for the solar eclipse?

1092
00:43:56,233 --> 00:43:59,303
Will all of the United
States be able to view it?

1093
00:44:00,337 --> 00:44:01,105
All of the

1094
00:44:01,105 --> 00:44:05,109
48 contiguous states
will view some sort of eclipse.

1095
00:44:05,442 --> 00:44:07,077
If you're in the path of
totality,

1096
00:44:07,077 --> 00:44:10,047
you'll have the opportunity to
view that total solar eclipse.

1097
00:44:10,047 --> 00:44:11,882
If you're not
in the path of totality,

1098
00:44:11,882 --> 00:44:13,851
then that's where you'll see
a partial eclipse.

1099
00:44:13,851 --> 00:44:14,885
So as long as you're within

1100
00:44:14,885 --> 00:44:17,888
those contiguous 48 states,
then yes, you can see it

1101
00:44:18,756 --> 00:44:21,058
and you hit on this
a little bit earlier.

1102
00:44:21,058 --> 00:44:22,993
But why does this eclipse

1103
00:44:22,993 --> 00:44:25,663
have totality
for such a longer duration?

1104
00:44:25,663 --> 00:44:25,929
You know,

1105
00:44:25,929 --> 00:44:30,467
you mentioned that this year
almost double from 2017, Right.

1106
00:44:30,501 --> 00:44:31,935
Why is that Right.

1107
00:44:31,935 --> 00:44:35,739
The moon's orbit actually
isn't circular around the sun.

1108
00:44:35,739 --> 00:44:37,341
It's an it's elliptical.

1109
00:44:37,341 --> 00:44:40,811
So it all depends on where
the moon is in its orbit

1110
00:44:40,978 --> 00:44:42,713
and really how close

1111
00:44:42,713 --> 00:44:46,150
the moon is or how far it is
from from the earth.

1112
00:44:46,350 --> 00:44:49,353
And so for this one,
compared to 2017,

1113
00:44:49,353 --> 00:44:52,856
we're going to get that shadow
just cast a little bit

1114
00:44:52,856 --> 00:44:54,658
that the path will be
a little bit wider.

1115
00:44:54,658 --> 00:44:58,595
The shadow is going to really
make that eclipse lasts

1116
00:44:58,629 --> 00:45:00,764
a little bit longer, just
based on where the earth is.

1117
00:45:00,764 --> 00:45:02,700
With respect to the Sun

1118
00:45:02,700 --> 00:45:04,868
and Burt on YouTube,
who wants to know

1119
00:45:04,868 --> 00:45:09,106
being so close to the equinox,
Why is the path of totality

1120
00:45:09,106 --> 00:45:11,341
at such
an angle with the equator?

1121
00:45:12,409 --> 00:45:14,278
Yeah, so it depends

1122
00:45:14,278 --> 00:45:17,514
that the moon's orbit
is tilted by five degrees.

1123
00:45:17,648 --> 00:45:20,551
And of course that with Earth
we have seasons as well.

1124
00:45:20,551 --> 00:45:23,053
So there's kind of this game
that you have to play between,

1125
00:45:23,053 --> 00:45:26,824
you know, the orbit,
right, of the Earth and the moon

1126
00:45:26,824 --> 00:45:29,893
and how the earth is tilted,
how the moon's orbit is tilted,

1127
00:45:30,027 --> 00:45:33,263
and it changes
kind of the geometry of

1128
00:45:33,263 --> 00:45:36,266
where the eclipse occurs
and how long and everything.

1129
00:45:37,301 --> 00:45:39,803
So earlier, you know,
we spoke a little bit about

1130
00:45:39,803 --> 00:45:43,040
photographing a total eclipse
with a cell phone.

1131
00:45:43,307 --> 00:45:45,008
Now we have a viewer on YouTube

1132
00:45:45,008 --> 00:45:48,112
who wants to know if
pointing a telescope to the sun

1133
00:45:48,445 --> 00:45:51,615
will damage the telescope
during this event.

1134
00:45:51,815 --> 00:45:52,549
Right.

1135
00:45:52,549 --> 00:45:55,452
We have filters for telescopes
as well.

1136
00:45:55,452 --> 00:45:56,453
Solar filters

1137
00:45:56,453 --> 00:45:58,055
that you
you put on your telescope

1138
00:45:58,055 --> 00:46:00,324
so that you can safely view
the eclipse.

1139
00:46:00,324 --> 00:46:02,826
So that's what
I would recommend, especially

1140
00:46:02,826 --> 00:46:04,261
if you're in that partial

1141
00:46:05,529 --> 00:46:06,964
partial eclipse area.

1142
00:46:06,964 --> 00:46:10,167
Now, for the total eclipse,
that's when with our own eyes,

1143
00:46:10,167 --> 00:46:11,802
we don't need to have
the glasses on

1144
00:46:11,802 --> 00:46:14,538
and you don't need to have
a filter for your eclipse.

1145
00:46:14,538 --> 00:46:17,574
But it also depends on
on what you're trying to see.

1146
00:46:17,775 --> 00:46:20,711
If you're trying to see
that corona in a certain light,

1147
00:46:20,711 --> 00:46:22,780
you might want a filter
for that too.

1148
00:46:22,780 --> 00:46:24,281
That allows you
to take different types

1149
00:46:24,281 --> 00:46:26,750
of images
and different science as well.

1150
00:46:26,750 --> 00:46:27,718
Okay.

1151
00:46:27,718 --> 00:46:30,587
For those just joining us,
we have another question

1152
00:46:30,587 --> 00:46:32,322
from Scientific potato
on YouTube.

1153
00:46:32,322 --> 00:46:35,659
Who wants to know,
will animals under the total

1154
00:46:35,926 --> 00:46:39,029
well, animals under the total
solar eclipse be acting weird?

1155
00:46:39,463 --> 00:46:41,064
They will be, yes.

1156
00:46:41,064 --> 00:46:43,333
Nature changes
during the eclipses.

1157
00:46:43,333 --> 00:46:44,701
It gets confused.

1158
00:46:44,701 --> 00:46:46,537
The nature basically

1159
00:46:46,537 --> 00:46:49,540
thinks that the sun is setting
and that it's nighttime and

1160
00:46:49,673 --> 00:46:52,075
and that's where we kind of
have animals getting ready

1161
00:46:52,075 --> 00:46:55,078
to go to sleep, birds
going to the trees crickets

1162
00:46:55,212 --> 00:46:56,246
that come out and chirp.

1163
00:46:56,246 --> 00:46:57,881
So that is part of the

1164
00:46:57,881 --> 00:47:01,652
whole eclipse viewing experience
is to really kind of see

1165
00:47:01,652 --> 00:47:03,453
and hear nature around
you as well.

1166
00:47:03,453 --> 00:47:05,189
You mentioned something to
I remember

1167
00:47:05,189 --> 00:47:06,123
from the annular eclipse.

1168
00:47:06,123 --> 00:47:07,991
The thing about spiders

1169
00:47:07,991 --> 00:47:10,093
and they're all
there is something with spiders.

1170
00:47:10,093 --> 00:47:12,095
I can't remember it
off the top of my head, but

1171
00:47:12,095 --> 00:47:14,298
I think it has to do with Yeah,
there's spiders

1172
00:47:14,298 --> 00:47:16,667
coming up and their webs
coming up and down too.

1173
00:47:16,667 --> 00:47:18,101
That's right.

1174
00:47:18,101 --> 00:47:23,207
And so our next question
is, is actually from a viewer

1175
00:47:23,207 --> 00:47:27,277
on on YouTube who wants to know
what advice do you have for

1176
00:47:27,277 --> 00:47:30,848
anybody who might be
experiencing this solar eclipse

1177
00:47:31,148 --> 00:47:31,982
for the first time?

1178
00:47:33,283 --> 00:47:34,885
I love this question.

1179
00:47:34,885 --> 00:47:38,021
I would say really take a moment

1180
00:47:38,021 --> 00:47:42,092
to embrace it
and, you know, experience

1181
00:47:42,092 --> 00:47:45,128
it with as few distractions
as possible.

1182
00:47:45,162 --> 00:47:46,830
I mean, I know that
we're all excited

1183
00:47:46,830 --> 00:47:48,699
to take pictures of the eclipse

1184
00:47:48,699 --> 00:47:50,667
to be able
to share the experience.

1185
00:47:50,667 --> 00:47:53,904
We're lucky that totality lasts
for four and a half minutes

1186
00:47:53,904 --> 00:47:57,641
because you can have
a few moments of quiet

1187
00:47:57,641 --> 00:48:00,644
to kind of see and feel
and look around.

1188
00:48:00,711 --> 00:48:04,314
But then you can also
take the photo that you as well.

1189
00:48:04,348 --> 00:48:07,150
So I would just say, you know,

1190
00:48:07,150 --> 00:48:11,188
make sure you put down all
your things and try to enjoy it.

1191
00:48:11,221 --> 00:48:12,956
Yeah, exactly.

1192
00:48:12,956 --> 00:48:13,957
Well, Gina, unfortunately,

1193
00:48:13,957 --> 00:48:16,593
that is all the time
that we have for today.

1194
00:48:16,593 --> 00:48:19,029
But thank you so much
for just joining us

1195
00:48:19,029 --> 00:48:21,465
and for answering so
many questions from our viewers.

1196
00:48:21,465 --> 00:48:24,835
I am so excited to be sharing
NASA's stage in carbon taxes

1197
00:48:24,835 --> 00:48:26,203
with you in just a few weeks.

1198
00:48:26,203 --> 00:48:27,237
Yeah, thanks to Hera.

1199
00:48:27,237 --> 00:48:28,005
It was great

1200
00:48:28,005 --> 00:48:30,073
being here today
and I'm really looking forward

1201
00:48:30,073 --> 00:48:31,575
to our broadcast in Kerrville.

1202
00:48:32,542 --> 00:48:34,878
And thank you to
everyone who joined us online.

1203
00:48:34,878 --> 00:48:37,347
We had some fantastic questions
today

1204
00:48:37,347 --> 00:48:40,250
and really love getting to
engage with you live like this.

1205
00:48:40,250 --> 00:48:42,419
We hope you enjoyed learning
more about the total

1206
00:48:42,419 --> 00:48:45,923
solar eclipse and feel better
prepared for the upcoming event.

1207
00:48:46,423 --> 00:48:49,726
Now make sure you set a reminder
to join us on April eight.

1208
00:48:50,060 --> 00:48:52,963
We will be streaming the eclipse
live from all over

1209
00:48:52,963 --> 00:48:55,933
North America
following that path of totality

1210
00:48:56,033 --> 00:48:59,536
as it sweeps across Mexico,
the US and Canada.

1211
00:49:00,003 --> 00:49:02,906
There are a variety of ways
for you to get involved.

1212
00:49:02,906 --> 00:49:04,574
You can watch the NASA broadcast

1213
00:49:04,574 --> 00:49:07,678
on multiple streaming platforms,
including in Spanish,

1214
00:49:07,844 --> 00:49:10,747
by heading over to go.nasa.gov

1215
00:49:10,747 --> 00:49:14,017
/eclipse 2024 live.

1216
00:49:14,451 --> 00:49:16,086
You can also take a look
at NASA's

1217
00:49:16,086 --> 00:49:17,054
website to see

1218
00:49:17,054 --> 00:49:20,624
if there are eclipse events near
you at go.NASA.gov

1219
00:49:20,791 --> 00:49:23,293
forward slash eclipse events.

1220
00:49:23,293 --> 00:49:26,463
If you'd like to stay updated
on all of the latest Sun news

1221
00:49:26,663 --> 00:49:31,001
follow NASA's Sun on Facebook
and NASA's Sun on X.

1222
00:49:31,335 --> 00:49:33,003
Thank you and see you next time.

1223
00:49:35,205 --> 00:49:36,039
We are one

1224
00:49:36,039 --> 00:49:39,042
of 100 billion stars
in a vast galaxy.

1225
00:49:39,076 --> 00:49:42,079
But for all of human culture
on Earth,

1226
00:49:42,646 --> 00:49:45,649
one sun that nourishes us all,

1227
00:49:47,184 --> 00:49:50,620
that is what stirs humankind.

1228
00:49:51,154 --> 00:49:54,157
That's what unites us

1229
00:49:57,427 --> 00:50:00,197
now. Experience

1230
00:50:00,197 --> 00:50:03,233
the wonder, the beauty
and the power of all

1231
00:50:03,233 --> 00:50:06,236
stars.

1232
00:50:07,004 --> 00:50:08,238
One sun

1233
00:50:08,238 --> 00:50:11,241
across space, time and culture.

1234
00:50:12,442 --> 00:50:15,012
Let us continue the quest

1235
00:50:15,012 --> 00:50:17,981
to unfold this universe

1236
00:50:18,148 --> 00:50:22,886
and let us continue
to find unity in our discovery.
