♪
>> HELLO AND WELCOME TO ANOTHER
EPISODE OF NASA SCIENCE LIVE.
I'M A PUBLIC AFFAIRS SPECIALIST
AT NASA HEADQUARTERS AS WELL AS
YOUR HOST FOR TODAY'S EPISODE.
TODAY IS INTERNATIONAL ASTEROID
DAY.
HERE WE ARE WATCHING THE SKIES
24/7.
ALTHOUGH TODAY IS DEDICATED TO
RAISE AWARENESS ABOUT ASTEROIDS
AND WHAT WE ARE DOING TO PROTECT
THE EARTH, WE WANT TO LOOK AT
HOW THEY ARE THE TIME CAPSULES
OF OUR SOLAR SYSTEM.
THEY ARE KNOWN AS THE GEOLOGICAL
REMNANTS OF THE SOLAR SYSTEM.
TODAY WE ARE TALKING TO NASA
EXPERTS ABOUT EVERYTHING
ASTEROID.
LIKE THE UPCOMING SAMPLE RETURN
FROM A 4.5 BILLION-YEAR-OLD
ASTEROID.
ALONG WITH MISSIONS TO THE
TROJAN ASTEROIDS, A METAL
ASTEROID WORLD AND A TEST TO
CHANGE THE ORBIT OF AN ASTEROID
IN SPACE.
TODAY I'M JOINED BY DANNY, A
RESEARCH SCIENTIST AT THE
UNIVERSITY OF ARIZONA AND THE
ACTING DEPUTY PRINCIPAL
INVESTIGATOR FOR THE
OSIRIS-REx MISSION.
ALONG WITH A DEPUTY SCIENTIST
FOR THE DARK MISSION AT THE JOHN
HOPKINS UNIVERSITY APPLIED
PHYSICS LABORATORY.
THANK YOU FOR JOINING US TODAY.
>> THANKS FOR HAVING US.
>> HAPPY TO BE HERE.
>> AS YOU JUST HEARD, NASA HAS A
SLOUGH OF EXCITING UPCOMING
MISSIONS RELATED TO ASTEROIDS.
CAN YOU TELL US WHY DOES NASA
HAVE SO MANY SPACECRAFTS
STUDYING THESE OBJECTS?
AREN'T ALL ASTEROIDS THE SAME?
>> THAT'S A GREAT QUESTION.
NO, ASTEROIDS AREN'T ALL THE
SAME.
THEY ARE THE LEFTOVERS OF THE
FORMATION OF THE PLANETS.
AND THERE ARE HUNDREDS OF
THOUSANDS OF THESE ROCKY LITTLE
WORLDS.
BECAUSE ASTEROIDS FORMED AT
VARYING DISTANCES FROM THE SUN,
THEY BEAR THE FINGERPRINTS OF
PROCESSES THAT TOOK PLACE ACROSS
THE SOLAR SYSTEM FROM ITS
FORMATION UNTIL NOW.
SO BY STUDYING DIFFERENT
EXAMPLES OF ASTEROIDS, WE CAN
LEARN QUITE A BIT ABOUT THE
VARIETY OF THINGS THAT HAVE
HAPPENED IN OUR SOLAR SYSTEM'S
HISTORY.
>> WOW.
ANY OF THESE ASTEROIDS WE ARE
STUDYING HAVE A POTENTIAL HAZARD
TO EARTH?
>> WELL, ABOUT A HUNDRED TONS OF
EXTRA TERRESTRIAL MATERIAL FALLS
ON THE EARTH EVERY DAY.
MOSTLY IT'S DUST AND METEORITE
FRAGMENTS.
NONE ARE VISITED BY SPACECRAFT
POSE A SPECIFIC HAZARD TO EARTH.
>> THANK YOU SO MUCH, DANNY AND
TERRICK.
WE'LL BE BACK TO ANSWER A FEW
MORE QUESTIONS.
REMEMBER THAT YouTube CAN
JOIN IN THE CONVERSATION AND
HAVE YOUR QUESTIONS ANSWERED BY
OUR GUESTS USING THE #ASKNASA.
FIRST, HAVE YOU EVER HEARD OF
THE TROJAN ASTEROID?
NASA'S MISSION WILL LAUNCH THIS
YEAR TO VISIT SEVERAL OF THESE
MYSTERIOUS OBJECTS THAT SHARE
JUPITER'S ORBIT.
LET'S LEARN MORE.
♪
>> WE ARE JOINED AGAIN WITH DANI
AND TERRICK.
WE HAVE HEARD ABOUT THE TROJAN
ASTEROIDS THAT WE'LL EXPLORE.
THERE IS ANOTHER ASTEROID FOCUS
MISSION NAMED PSYCHE.
CAN YOU TELL US MORE ABOUT IT?
>> OF COURSE.
IT'S A JOURNEY TO A METAL WORLD
THAT SITS BETWEEN MARS AND
JUPITER.
FOR THE FIRST TIME EVER HUMANITY
WILL EXPLORE A WORD MADE NOT OF
ROCK OR ICE, BUT METAL.
THIS WILL GIVE US A MISSION INTO
THE METALLIC CORES OF PLANETS.
AS WELL AS TELL US MORE ABOUT
HOW THE SOLAR SYSTEM FORMED AND
THE PSYCHE SPACECRAFT IS
LAUNCHING SUMMER OF 2022.
>> THIS IS SO COOL.
NOW, DANI, WHEN WE SEND THESE
SPACECRAFT OUT TO STUDY
ASTEROIDS, DO THEY BRING THE
INSTRUMENTS WITH THEM?
CAN WE BRING SAMPLES BACK TO
EARTH?
>> THE ANSWER IS YES.
RETURNING SAMPLES LET'S US STUDY
ASTEROID MATERIAL WITH MORE
DETAIL THAN WE CAN GATHER FROM A
SPACECRAFT.
OSIRIS-REx IS THE FIRST
ASTEROID SAMPLE RETURN MISSION.
LAST YEAR IT GRABBED A SAMPLE
FROM BENU.
IT'S GOING TO BE DELIVERED IN
SEPTEMBER OF 2023 SO WE CAN
FURTHER STUDY IT.
ADDITIONALLY, OUR COLLEAGUES
WITH THE JAPANESE SPACE AGENCY
JUST RETURNED SAMPLES FROM
RYUGU.
THEY ARE SHARING THE SAMPLE WITH
NASA.
OUR LABORATORIES ARE PREPARING
FOR THAT DELIVERY LATER THIS
YEAR.
>> OH, MY GOSH, IT IS SO COOL
THAT WE CAN LEARN SO MUCH.
HOW DOES NASA FIND AND
CHARACTERIZE THESE NEAR EARTH
OBJECTS?
>> NASA USES POWERFUL TELESCOPES
ON THE GROUND AND IN SPACE TO
FIND ASTEROIDS.
ONCE NASA FINDS AN ASTEROID,
SCIENTISTS CALCULATE DOES IT
POSE AN IMPACT HAZARD.
THEY FIGURE OUT HOW BIG THE
ASTEROID IS AND WHAT IT'S MADE
OF.
IT'S GET POSTED ON A WEBSITE SO
THAT PEOPLE AROUND THE WORLD CAN
FIND OUT MORE.
>> NOW, IF WE DID FIND A
HAZARDOUS ASTEROID, WHAT DO WE
DO ABOUT IT?
>> NASA IS DEVELOPING TECHNOLOGY
TO DEFLECT AN ASTEROID SO IT
WOULD NOT HIT THE EARTH.
ONE OPTION IS TO PARK A
SPACECRAFT NEXT TO IT AND SLOWLY
NUDGE THE ASTEROID INTO A
DIFFERENT ORBIT.
THE OTHER OPTION IS SLAM A
SPACECRAFT INTO IT AND CHANGE
ITS ORBIT.
NASA WILL LAUNCH DART TO TEST
THE TECHNOLOGY.
BY DEVELOPING IT NOW WE'LL BE
ABLE TO DEAL WITH AN ASTEROID IF
THE TIME COMES.
>> OKAY.
SO YOU MENTIONED A MISSION TO
CHANGE AN ASTEROID ORBIT.
IT SOUNDS LIKE SCIENCE FICTION
THAT NASA IS GOING TO CRASH A
SPACECRAFT INTO AN ASTEROID.
BUT LET'S LEARN MORE ABOUT DART.
>> IS NASA REALLY CRASHING A
SPACECRAFT INTO AN ASTEROID?
YES, NASA REALLY IS CRASHING A
SPACECRAFT INTO AN ASTEROID.
THAT SPACECRAFT IS DART, THE
DOUBLE ASTEROID REDIRECTION
TEST.
THEY FALL TO THE EARTH ALL THE
TIME.
ONES THAT CAUSE DAMAGE ARE RARE.
NASA AND OTHERS ARE TRACKING
ASTEROIDS.
WE HAVEN'T FOUND ALL OF THEM
YET.
SO IT MAKES SENSE TO DO THIS
FIRST TEST TO DEMONSTRATE IF WE
NEEDED TO PROTECT THE EARTH,
WHAT MIGHT BE DO?
DART IS A SPACECRAFT THAT'S THE
SIZE OF A VENDING MACHINE.
IT'S GOING TO BE TRAVELING
15,000 MILES PER HOUR.
SLAMMING A SMALLER SPACECRAFT
INTO THIS LARGER ASTEROID WON'T
DESTROY IT, BUT IT WILL DEFLECT
IT.
IT WILL GIVE IT A NUDGE AND
CHANGE THE PATH.
YOU WANT TO DO IT YEARS IN
ADVANCE.
IS NASA CRASHING A SPACECRAFT
INTO AN ASTEROID?
YES, IN THE NAME OF PLANETARY
DEFENSE, IN ORDERER TO BE READY
IN CASE WE NEED IT.
>> I SEE WE HAVE SO MANY
QUESTIONS COMING IN FROM OUR
ON-LINE VIEWERS.
IT'S NOT TOO LATE TO ASK YOUR
QUESTIONS.
USE #ASKNASA.
OUR FIRST QUESTION IS FROM
CHANDRA.
WHY DO ASTEROIDS FLOAT IN SPACE?
>> SO ASTEROIDS ARE ACTUALLY
ORBITING THE SUN.
THE GRAVITATIONAL PULL OF THE
SUN IS THAT GRAVITATIONAL GIANT
IN OUR SOLAR SYSTEM AND THE
ASTEROIDS ARE ORBITING THE SUN
IN THE SAME WAY THE EARTH IS
ORBITING THE SUN, BUT IN A
DIFFERENT LOCATION.
>> I HAVE A NEW QUESTION.
THIS IS FROM ROSE BUD ON
YouTube.
THEY ASK WILL 2021 PBC HIT
EARTH, I'M SCARED.
I UNDERSTAND THIS IS NOT A REAL
ASTEROID, BUT WAS THE NAME OF
THE SIMULATED ASTEROID USED AT
THIS YEAR'S PLANETARY DEFENSE
CONFERENCE.
CAN YOU TELL US MORE ABOUT THAT
EXERCISE?
>> YES.
IT'S A FICTIONAL ASTEROID.
EVERY COUPLE OF YEARS THE
INTERNATIONAL COMMUNITY COMES
TOGETHER TO DISCUSS HOW TO
RESPOND IF THERE WERE AN
ASTEROID THAT POSED A HAZARD TO
EARTH AND THEN THIS YEAR THERE
WAS A VIRTUAL MEETING BACK IN
APRIL WHERE THERE WAS AN
EXERCISE WITH THIS FAKE
ASTEROID, 2021 PBC.
DECISION MAKERS AND SCIENTISTS
WORKED TOGETHER TO PRACTICE AND
EXERCISE WHAT WE WOULD DO IN THE
EVENT OF AN ASTEROID THREAT.
YOU CAN TELL IT'S A FAKE
ASTEROID BECAUSE ITS NAME AND
NUMBER DON'T USE THE SYSTEM WE
USE FOR REAL ASTEROIDS.
>> ALL RIGHT.
CHASE ON TWITTER ASKS WHAT ARE
PLANETARY DEFENSES AGAINST
ASTEROIDS?
DANI, WOULD YOU LIKE TO TALK
ABOUT THAT?
>> SURE.
I WOULD BE HAPPY TO BUILD ON
THAT.
THERE IS A COUPLE OF DIFFERENT
WAYS THAT WE ARE GUARDING OUR
PLANET.
ONE OF THE BIGGEST WAYS IS JUST
KEEPING OUR EYES OUT ON THE SKY
AND SEARCHING FOR ASTEROIDS THAT
WE HAVEN'T YET DISCOVERED.
THERE IS A NUMBER OF NEAR-EARTH
OBJECT SURVEYS.
THEY ARE DOING THIS FULL TIME
AROUND THE CLOCK AT DIFFERENT
LOCATIONS ON OUR PLANET SO THEY
GET SLIGHTLY DIFFERENT LOOKS AT
THE SKY.
OTHER WAYS WE WOULD MITIGATE
AGAINST AN ASTEROID HAZARD
INCLUDE TESTING TECHNOLOGIES
THAT TERRICK DISCUSSED USING
GRAVITY TRACTORS TO SLOWLY
CHANGE THE PATH OF THESE
ASTEROIDS IN SPACE AS WELL AS
IMPACTING THEM AND NUDGING THEIR
PATH IN SPACE.
LIKE THE DART MISSION WILL DO IN
A COUPLE OF YEARS HERE.
>> OKAY.
I HOPE THAT ANSWERS YOUR
QUESTION.
WE HAVE A NEW QUESTION FROM NASA
ON Facebook.
AND THEY ASK HOW DO YOU KNOW
THAT THEY ARE REALLY THAT OLD?
DANI, CAN YOU SHARE INSIGHT ON
HOW OLD ASTEROIDS ARE?
>> YEAH, ABSOLUTELY.
SO WE HAVE A COUPLE OF DIFFERENT
PIECES OF INFORMATION THAT ALLOW
US TO DRAW THAT CONCLUSION.
ONE OF THE BIGGEST SOURCES OF
INFORMATION ABOUT ASTEROIDS ARE
ACTUALLY METEORITES WE GET
DELIVERED TO EARTH THROUGH JUST
NATURAL IMPACTS EVERY YEAR.
AND SO WE HAVE A LARGE NUMBER OF
METEORITES IN OUR COLLECTIONS
ACROSS THE WORLD AND WE CAN USE
THOSE SAMPLES TO DO AGE DATING
AND FIGURE OUT EXACTLY HOW OLD
SOME OF THOSE SAMPLES ARE AND
WHEN THEY FORMED AND THAT HAS
GIVEN US INSIGHT INTO THE FACT
THAT MANY OF OUR METEORITES
REALLY WERE BORN SHORTLY AFTER
THE FORMATION OF OUR SOLAR
SYSTEM.
>> I HAVE ANOTHER QUESTION FOR
YOU.
THIS IS FROM NICK ON
YouTube.
AND THEY ASK, WILL AN ASTEROID
EVER HIT EARTH AND WIN?
AND WILL IT BE IN THIS LIFETIME?
WHO WOULD LIKE TO ANSWER THAT?
>> I CAN TAKE THAT.
THERE ARE NO KNOWN ASTEROID
IMPACT THREATS FOR THE NEXT
HUNDRED YEARS.
WE DO HAVE ASTEROIDS THAT ARE
SMALLER, SAY LIKE ABOUT A FEW
METERS, MAYBE 12 FEET ACROSS.
THOSE HIT MAYBE ONCE A YEAR.
BUT THEY BREAK UP IN THE
ATMOSPHERE AND DON'T CAUSE A LOT
OF DAMAGE.
AS DANI MENTIONED, OUR FIRST
DEFENSE IS TO FIND THE ASTEROID.
WE KNOW ABOUT 40 OR 50% OF THE
ASTEROIDS THAT MIGHT CAUSE A
REGIONAL DAMAGE.
SO NASA IS WORKING HARD TO FIND
THE REST OF THOSE ASTEROIDS
BECAUSE ONCE WE KNOW WHERE THEY
ARE, WE'LL BE ABLE TO KNOW MORE
ABOUT THE HAZARD THEY POSE.
>> OKAY.
SO I HAVE ANOTHER QUESTION FROM
YouTube.
THIS IS FROM RADEON-AZ.
DO ASTEROIDS HAVE THEIR OWN
GRAVITATIONAL FIELD.
>> YES, ASTEROIDS DO HAVE THEIR
OWN SMALL GRAVITATIONAL FIELD.
THEY ARE WEAKER THAN EARTH'S.
WE ARE THINKING ABOUT THINGS
THAT ARE MORE LIKE MICROGRAVITY
LIKE BENU.
THEY HAVE A WEAK PULL COMPARED
TO LARGER PLANETS, EVEN THEY
MIGHT HAVE SMALL MOONS IN THE
CASE OF BENU, WE SAW MANY
PARTICLES JUST A COUPLE
CENTIMETERS ACROSS ORBITING
AROUND IT AND ITS WEAK
GRAVITATIONAL FIELD.
IT'S A GREAT QUESTION.
>> STEVE JOHNSON ON YouTube
ASKS WILL WE BE ABLE TO USE THE
MATERIALS FOUND ON ASTEROIDS AS
REFUELING STATIONS FOR TRAVELING
DEEPER INTO SPACE?
>> YOU WANT TO TAKE THAT ONE,
TERRICK?
>> SURE.
PEOPLE CALL ABOUT ISR, USING
THINGS ON ASTEROIDS OR ON THE
MOON, FOR EXAMPLE, TO GET
RESOURCES LIKE WATER OR OTHER
THINGS FOR ASTRONAUTS OR SPACE
EXPLORATION.
IT'S AN AREA OF ACTIVE WORK
WHERE PEOPLE ARE THINKING ABOUT
HOW TO UTILIZE RESOURCES OUT
THERE IN SPACE.
IT'S MORE OF A LONG TERM STUDY
RATHER THAN SOMETHING WE CAN DO
RIGHT NOW.
>> OKAY.
WE HAVE A QUESTION COMING IN
FROM SPACE LIVE ON YouTube.
THEY ASK IF THERE IS A
DIFFERENCE BETWEEN ASTEROIDS,
METEORITES AND COMETS?
AND IF SO, WHAT ARE THEY?
>> YEAH, I WOULD BE HAPPY TO
ANSWER THAT.
THERE IS A CONTINUUM BETWEEN
WHAT WE THINK OF ASTEROIDS AND
COMETS.
TYPICALLY ASTEROIDS ARE COMPOSED
OF MORE ROCKY MATERIALS AND
COMETS WHICH ORIGINATE FURTHER
OUT ARE COMPOSED OF DIFFERENT
ICES.
BUT THERE IS SOME ASTEROIDS THAT
HAVE A LITTLE BIT OF ICY
MATERIAL AND VICE VERSA WITH
COMETS.
AND THEN AS FAR AS METEORITES
GO, THEY HAVE MATERIAL FROM
OTHER PLANETARY OBJECTS THAT
HAVE COLLECTED ON OUR PLANET.
WE HAVE A LOT OF METEORITES FROM
ASTEROIDS, THEY REFER TO
MATERIAL FROM OTHER PLANETARY
OBJECTS THAT ORIGINATED
ELSEWHERE THAT HAS LANDED ON OUR
PLANET.
>> I HAVE A QUESTION ON
YouTube.
IT ASKS WHAT IS THE MOST STRANGE
ASTEROID THAT HAS BEEN ANALYZED?
>> I THINK THAT IS A SUBJECTIVE,
SO TERRICK WOULD GIVE A
DIFFERENCE ANSWER THAT I WOULD.
I THINK SOME OF THE COOLEST
ASTEROIDS THAT WE HAVE OBSERVED
ARE ASTEROIDS IN THE OUTER
ASTEROID BELT.
THESE ARE, I ALLUDED TO EARLIER,
THEY ARE A CONTINUUM.
SO THERE IS SOME ASTEROIDS THAT
DISPLAY COMETARY ACTIVITY EVERY
ONCE IN A WHILE.
THEY SHOW TAILS AND LIKE THEY
ARE KIND OF OFF-GASSING
MATERIAL.
I THINK THOSE ARE STRANGE AND
FASCINATING OBJECTS, WHAT WE
CALL ACTIVE ASTEROIDS.
TERRICK, WHAT DO YOU THINK?
>> HONESTLY, IT'S WHATEVER
ASTEROID WE HAVE MOST RECENTLY
VISITED.
BECAUSE EVERY ASTEROID IS
DIFFERENT.
THINKING ABOUT OSIRIS-REx.
WE TOUCHED THIS ASTEROID AND IT
BEHAVED IN A TOTALLY BIZARRE
WAY.
THE TOTAL SURFACE MOVED AWAY AND
THE SPACECRAFT KEPT MOVING
INWARD.
SO EVERY TIME WE STUDY A NEW
ASTEROID, WE GET SURPRISED AND I
FIND THE MOST RECENT SURPRISE
THE MOST SURPRISING AND MORE
INTERESTING.
>> NICE.
I HAVE A QUESTION FROM NICK ON
YouTube.
AND THEY ASK NASA SAID THAT
APOPHIS WON'T HIT EARTH IN 100
YEARS.
DOES IT MEAN IN 100 YEARS IT
WILL HIT OR SOMETHING ELSE?
>> THE ASTEROID APOPHIS IS AN
ASTEROID THAT IN 2029 WILL MAKE
A CLOSE APPROACH TO EARTH.
IT WILL NOT HIT THE EARTH IN
2029 OR THE NEXT HUNDRED YEARS.
IN THAT CLOSE APPROACH TO EARTH,
THE SPIN STATE AND ROTATION WILL
CHANGE.
THAT MAKES IT CHALLENGING TO
PREDICT FAR IN THE FUTURE.
WE KNOW IT'S NOT GOING TO HIT
FOR A HUNDRED YEARS.
WE ARE NOT SAYING IT WILL HIT IN
A HUNDRED YEARS, BUT WILL
CONTINUE TO STUDY AND MEASURE
ITS ORBIT AND MONITOR IT SO WE
UNDERSTAND THE HAZARD IT POSES.
IN SHORT, NASA IS NOT SAYING IT
WILL IMPACT IN A HUNDRED YEARS,
WE KNOW IT'S A HUNDRED YEARS
INTO THE FUTURE AND WE'LL
CONTINUE TO MONITOR IT.
>> THERE ARE GOOD QUESTIONS FROM
YouTube.
MARK ASKS WHY AREN'T THE DARK
SOLAR PANELS SYMMETRICAL.
>> I CAN TAKE THE DARK ONE.
IT'S A BRAND NEW TECHNOLOGY
CALLED ROLL OUT SOLAR ARRAYS.
THINK ABOUT PAPER TOWELS ON A
ROLL.
THEY ARE LIKE SCHOOL BUS SIZE ON
THE SPACECRAFT, THEY ARE WRAPPED
UP AROUND A PAPER TOWEL TUBE,
BUT THAT KIND OF AN IDEA.
AND THAT'S JUST THE WAY THEY
WERE ABLE TO FIT ON THE
SPACECRAFT.
THEY REFER TO IT AS
ACCOMMODATION.
YOU GOT TO SEND A LOT OF STUFF
IN A SMALL SPACE.
BUT THEY ARE BRAND NEW
TECHNOLOGY BEING TESTED FOR THE
FIRST TIME ON DART.
>> KAYLA ON Facebook ASKS HOW
MANY ASTEROIDS ARE THERE IN OUR
SOLAR SYSTEM, AND WHAT ARE THEY
DOING?
ARE THEY HELPING ANYTHING?
>> I CAN TAKE THAT ONE.
THERE ARE HUNDREDS OF THOUSANDS
OF ASTEROIDS IN THE SOLAR SYSTEM
WE KNOW ABOUT.
THERE ARE EVEN MORE THAT WE JUST
HAVEN'T YET OBSERVED WITH OUR
TELESCOPE.
AND SO THEY ARE, AS FAR AS WHAT
THEY ARE DOING, MOST ARE JUST
ORBITING AROUND THE SUN AND
SITTING THERE WAITING TO BE
OBSERVED AND EXAMINED BY VARIOUS
TELESCOPES, USUALLY WITH
INSTRUMENTS THAT GIVE US
INFORMATION ABOUT THEIR
COMPOSITION AND HELP US
UNDERSTAND HOW THEY RELATE TO
OTHER ASTEROIDS.
SOME ASTEROIDS LIKE I MENTIONED
EARLIER ARE WHAT WE CALL ACTIVE,
SO THEY DO HAVE SOME SORT OF
ACTIVITY THAT'S OCCURRING ON
THEIR SURFACE.
BUT A LOT OF THEM, LIKE THE
OTHER PLANETS IN OUR SOLAR
SYSTEM, ARE JUST CHILLING AROUND
THE SUN.
>> I HAVE ONE LAST QUESTION.
IT IS FROM ME.
MAYBE BOTH OF YOU COULD ANSWER
IF WE HAVE A FEW MOMENTS.
WHAT ADVICE WOULD YOU HAVE FOR
VIEWERS WHO ARE WANT TO PURSUE A
CAREER SIMILAR TO YOUR OWN?
>> I WOULD BE HAPPY TO ANSWER AT
LEAST FROM MY PERSPECTIVE.
SO I WOULD SAY STUDY, IF YOU GO
TO COLLEGE, I WOULD RECOMMEND
THAT.
STUDY THAT RELATES TO
UNDERSTANDING THE PHYSICAL WORLD
AROUND US.
SO PEOPLE THINK OF MATH AND
PHYSICS AND ENGINEERING, BUT
ALSO GEOLOGY AND EVEN BIOLOGY,
ESPECIALLY BECAUSE IT HAS MANY
APPLICATIONS TO ASTRO BIOLOGY,
GREAT THINGS TO BEGIN
UNDERSTANDING THE WORLD AROUND
YOU AND QUESTIONING WHY ARE
THINGS THE WAY THEY ARE AND HOW
DID THEY GET THIS WAY.
>> I THINK YES TO EVERYTHING YOU
SAID.
ALSO, APPLYING, LOOKING FOR
OPPORTUNITIES TO GET YOUR HAND
DIRTY.
INTERNSHIPS ARE A GREAT WAY TO
BUILD EXPERIENCE THAT LOOKS GOOD
ON A RESUME'.
WHILE YOU ARE PURSUING THAT
EDUCATION, BE BOLD AND ASK
PEOPLE FOR OPPORTUNITIES TO DO
WORK, TO DO RESEARCH, SO YOU CAN
GET THAT WORK EXPERIENCE ALONG
WITH THAT FORMAL EDUCATION.
>> THANK YOU BOTH FOR THAT
ANSWER TO THAT QUESTION.
UNFORTUNATELY, THAT'S ALL THE
TIME WE HAVE.
THANK YOU SO MUCH, DANI AND
TERRICK FOR JOINING US TODAY.
>> THANK YOU FOR HAVING US.
>> YES, IT'S BEEN FUN.
THANK YOU.
>> THANK YOU.
AND THANK YOU ALL FOR JOINING US
FROM HOME.
TO KEEP UPDATED ABOUT THE
MISSIONS MENTIONED TODAY, BE
SURE TO FOLLOW NASA SOLAR SYSTEM
ON Facebook, TWITTER AND
INSTAGRAM.
FOLLOW ASTEROID WATCH ON TWITTER
AND LEARN MORE ABOUT HOW NASA IS
STUDYING THE SOLAR SYSTEM, VISIT
SOLAR SYSTEM.NASA.GOV.
WE HAVE A SPECIAL MESSAGE FROM
NASA'S NEWEST ADMINISTRATOR BILL
NELSON.
UNTIL NEXT TIME, HAPPY ASTEROID
DAY.
>> HI, I'M BILL NELSON.
I HAVE THE PRIVILEGE OF HEADING
UP NASA AND I WANT TO THANK YOU
FOR JOINING US ON INTERNATIONAL
ASTEROID DAY.
AND EVERY DAY FOR US AT NASA IS
AN ASTEROID DAY BECAUSE WE HAVE
THESE MISSIONS THAT ARE
EXPLORING FOR ASTEROIDS ALL THE
TIME.
AS A MATTER OF FACT, NASA AND
OUR PARTNERS ARE WATCHING THE
SKIES 24/7, 365.
AND USING GROUND BASED
TELESCOPES, WE HAVE ALREADY
FOUND 26,000 NEAR EARTH
ASTEROIDS.
THERE ARE SO MANY MORE TO BE
FOUND.
SO TODAY WE ANNOUNCED THE
EXTENSION OF NASA'S NEOWISE.
IT'S A SPACE BASED OBSERVATORY
THAT WILL HELP US FIND MORE OF
THESE AND WORK ON NASA'S FIRST
SPACE BASED TELESCOPE THAT'S
DESIGNED TO FIND ASTEROIDS
CALLED NEO-SURVEYOR.
IT'S CURRENTLY UNDER WORK.
WE ARE LOOKING FORWARD TO THE
LAUNCH OF DART.
IT'S OUR FIRST PLAN TEARY
DEFENSE TEST MISSION.
THAT'S GOING TO GO LATER THIS
YEAR.
THANK YOU FOR WATCHING TODAY'S
EPISODE OF NASA SCIENCE LIVE.
YOU CAN BE ASSURED THAT NASA IS
IS ALWAYS LOOKING UP.