PLANETARY DEFENSE IS
FINDING ASTROS BEFORE THEY FIND
US BUT ALSO GETTING ASTEROID
BEFORE THEY GET US.
MY NAME IS KELLY AND PLANETARY
DEFENDER IN THE DEFENSE
COORDINATION OFFICE, I IMAGINE
THE OBSERVATION PROGRAMS.
IT ADDRESSES FINDING THE
ASTEROIDS AND HANDLES GETTING
THE ASTROIDS THIS IS THE DARK
SPACECRAFT.
AND SMACK AN ASTEROID.
IT IS FANTASTIC TO SEE IT IN
REAL LIFE AND DART WILL BE
CHANGING NERD OF THE ORBIT, AND
REALLY THAT IS ALL THAT IS
NEEDED IN THE EVENT THAT
ASTEROID IS DISCOVERED WELL
AHEAD OF TIME BEFORE IT MIGHT
IMPACT EARTH.
YOU CANNOT HAVE A MISSION LIKE
DART WITHOUT FINDING THE
ASTEROID FIRST THAT INVOLVES
SEARCHING FOR ASTEROID GETTING A
NEW CATALOG AND CALCULATING
ORBIT TRACKING THEM KEEPING AN
EYE ON THEM.
I LOVE ASTRONOMY, STAR TREK.
I BECOME A RESEARCH AGE MY FIRST
OBSERVING RUN EVER WAS OBSERVING
THE EM PACT OF JUPITER IN A
NEVER WOULD HAVE KNOWN THAT
SOMEHOW MY CAREER WOULD COME
FULL CIRCLE TO BE A PART OF
SOMETHING THAT AFFECTS EVERY DAY
LIVES THEN I FEEL HONORED THEN
HUMBLED TO BE WORKING IN THE
FIELD OF DEFENSE BECAUSE IT CAN
EFFECT PEOPLE AND IT IS EXCITING
TO HAVE THAT KIND OF ROLE IN AN
AREA OF SCIENCE THAT HAS SUCH SA
BROADER IMPACT, YOU KNOW,
FIGURATIVELY AND LITERALLY.
>> HI EVERYONE.
I AM PUBLIC AFFAIRS OFFICER HERE
AT NASA AND SO EXCITED TO BE
JOINED TODAY BY DR.KELLY FAST
YOU HAD THE OPPORTUNITY TO MEET.
KELLY, THANKS SO MUCH FOR
JOINING US TODAY.
>> WELL, THANK YOU, JOSH I AM
GLAD TO HAVE THIS OPPORTUNITY TO
ANSWER QUESTIONS.
>> KELLY US HERE TO ANSWER YOUR
BURNING QUESTIONS ABOUT
PLANETARY DEFENSE AT NASA AND
THE DARK MISSION AND YOU HAVE A
QUESTION TO ASK.
SEN IT IN USING THE HASHTAG ASK
NASA OR WRITING IN THE COMMENT
BOX WHEREVER YOU ARE WATCHING
TODAY'S BROADCAST IN YOUR VIDEO
WE LEARNED ABOUT THE ROLE WITH
NASA'S PLANETARY DEFENSE AND THE
DART MISSION AND YOU HAVE A
GREAT LINE THAT SAYS YOU NEED TO
FIND ASTEROIDS BEFORE THEY FIND
US SO IF WE NEED TO WE CAN GET
THEM BEFORE THEY GET US.
CAN YOU TELL ME ABOUT WHY THAT
IS IMPORTANT AND FOR MISSION
LIKE DART?
EVEN THOUGH DART IS A VERY
IMPORTANT TEST HERE TO GET TOOLS
IN THE TOOLBOX SHOULD ASTEROID
BE DISCOVERED THAT DOES POSE
IMPACT THREAT.
WE DO HAVE TO DO THE OTHER SIDE
OF THE COIN WHICH IS PRIMARY
MISSION OF FINDING THE ASTEROIDS
THEN SO THE PROGRAM AT NASA THE
OBSERVATION PROGRAM FUNDS
PROJECTS TO TAKE TELESCOPES
EVERY NIGHT SURVEYING THE SKIES
LOOKING FOR NEW NEAR EARTH
ASTEROIDS AND CALCULATING THE
ORBITS TELESCOPES LIKE THE
TELESCOPES AND UNIVERSITY OF
HAWAII OR THE CATALINA SKY
SURVEY AT THE UNIVERSITY OF
ARIZONA OTHER TELESCOPES AND
BOTH FUNDED BY NASA AND THEN,
ALSO, ALSO, OBSERVATORIES AROUND
THE WORLD CONTINUING TO FOLLOW
UP THOSE DISCOVERIES AND THEN IN
ORDER TO HAVE CATALOG AND YOU
WOULD WANT TO KNOW THAT WELL
AHEAD OF TIME AND THAT IS WHY
YOU WANT TO FIND THEM AND WELL
BEFORE THEY FIND US.
>> THAT IS A GREAT ANSWER, THANK
YOU, KELLY.
ALL RIGHT.
ALL THE QUESTIONS ARE STARTING
TO FLY IN SO LET'S GET START AS
REMINDER IF YOU HAVE A QUESTION
YOU LIKE TO ASK KELLY ABOUT
PLANETARY DEFENSE OR THE DART
MISSION SEN IT IN USING HASHTAG
ASK NASA AND BY WRITING IN THE
COMMENT BOX WHEREVER YOU ARE
WATCHING TODAY'S BROADCAST.
SO KELLY ON TWIT OTHER ASKS WHAT
KIND OF LIKE HEARD MODELING ARE
DONE ON A MISSION LIKE THIS?
FROM WHAT I UNDERSTAND RESOLVING
POWER AND TELESCOPES IS USUALLY
NOT ENOUGH TO RESOLVE ASTEROIDS
SO HOW DO YOU IN FOR THE
GEOMETRY WITHOUT DIRECTLY
OBSERVING IT?
WELL, THAT IS A GOOD POINT
BECAUSE THE ASTEROIDS SYSTEM IS
GOING TO PASS EARTH WELL AND
WELL AWAY FROM EARTH BUT IT IS A
CHANCE TO LOOK AT IT WITH
TELESCOPES WHEN DART IMPACTS
THEN THAT IS GOING HOW WE
DETERMINE WHAT HAPPENED AFTER
DART IMPACTED THE MOON OF P AND
BUT, BUT, IT IS STILL SO FAR
AWAY LIKE IT WAS MENTIONED AND
QUESTIONED IN RESOLVING POWER
AND SMALL AND YOU SEIZE THIS
POINT OF LIFE.
THIS POINT OF LIGHT GETS
BRIGHTER, FAINTER, BRIGHTER,
FAINTER, AS THAT MOON GOES
AROUND DIDAMOS AND PASSES IN
FRONT, YOU SEE YOU BEHIND, YOU
SEE ONE BLOCKING THE OTHER SORE
THE LIGHT GOES UP AND DOWN, AND
SO THE PERIOD WITH WHICH THAT
LIGHT GOES UP AND DOWN WHICH
REPRESENTS THE TIME AND THAT
ORBIT THINK OF MOON AROUND, THAT
IS WHAT WILL BE CHANGED BY DART.
DART WILL IMPACT AND CHANNEL THE
SPEED AND CANNOT RESOLVE THE
INDIVIDUAL ASTEROIDS AND LOOK
THAT COMBINED LIGHT THROUGH
MODELING THE ASTRONOMY ON THE
INVESTIGATION TEAM DID A
FANTASTIC JOB OF BACKING OUT
THAT INFORMATION TO BE ABLE TO
ACCESS WHAT EFFECTS DID THAT
DART IMPACT HAVE ON THE ORBIT
THEN EVENTUALLY ON OUR
CAPABILITY TO DEFECT AN ASTEROID
OF THAT SIZE REGIME SHOULD WE BE
FACED WITH THAT NEED.
THAT IS A GOOD POINT AND
ACTUALLY TARGETING THE ASTEROID
MOON AND IMPORTANT FOR THIS
EXPERIMENT.
>> RIGHT.
RIGHT.
DINES OF A NICE OPPORTUNITY
THAT, THAT NATURE HAS GIVEN US
TO BE ABLE TO TEST LIKE A
TECHNIQUE AND LABORATORY SETTING
BY HAVING A BINARY ASTEROID LIKE
THIS.
IT IS MUCH EASIER TO DETECT FROM
THE EARTH WHAT AN IMPACT LIKE
DART MAY HAVE ON THE ORBIT OF
LIKE THE MOON LIKE AROUND RATHER
THAN TEST AND CHANGING THE
ASTRID'S ORBIT AROUND THE SUN
AND WILL HAVE LITTLE OR NO
IMPACT IN THAT SENSE NOON CHANGE
BUT IT IS THAT ORBIT AROUND BY
THE MOON THAT WILL BE AFFECTED
AND THAT IS MUCH EASIER TO
MEASURE IN THE ASTEROID SYSTEM
SO EVERYTHING COMES TOGETHER
WHERE WE ARE JUST KINDLY COMES
TO THE RIGHT POSITION, WHERE
TELESCOPES CAN WATCH FROM EARTH
AND SEE WHAT THE CHANGE IS AND
INTO UNDERSTANDING THE KINETIC
IMPACT AND TECHNIQUE IN GENERAL
AND DART TEAM AND THE
ASTRONOMIES ON THE TEAM WILL
COMMUNICATE AND FEED THAT INTO
THE MODELING SO THEY CAN TURN
THAT INTO SOME REAL RESULTS
ABOUT WHAT, A WE CAN EXPECT,
SHOULD WE EVER NEEDED TO DO THIS
FOR REAL, THEN, THE NICE THING
ABOUT THE SYSTEM IS, YOU KNOW,
POSES NO THREAT TO EARTH AND WE
COULDN'T MAKE IT A THREAT TO
EARTH AND WONDERFUL LABORATORY
THAT NATURE HAS PUT AT THE RIGHT
PLACE, AT THE RIGHT TIME, WE CAN
USE THIS COMBINATION OF
GROUND-BASED TELESCOPES AND THE
SPACECRAFT TO DO THIS EXPERIMENT
AND WHICH IS GREAT BECAUSE, IT
IS NICE DO THIS AT A TIME WHEN
WE DON'T NEED IT, SO IF THERE IS
A TIME WE NEED IT.
IT IS HOT THE FIRST TIME WE EVER
TRIED TO KIND OF TEST SOME OF
THE TECHNIQUES THAT MAY BE IN
THE TOOLBOX.
>> THAT IS A GOOD POINT.
HAVE ANSWERED THE QUESTION ON
YOUTUBE WHO ASKED WHAT IF THE
IMPACT TEST MAKES IT GO FORWARD
EARTH.
IT IS IT AT ALL POSSIBLE THAT
DART CAN SOMEHOW REDIRECT THE
ASTEROID TOWARD EARTH.
>> NO, NOPE.
ALL IT WILL DO IS JUST CHANGE
THE SPEED OF THE ORBIT OF
SLIGHTLY CHANGE THE PERIOD AND
ORBIT AROUND THE ASTEROID SYSTEM
AND IT WILL BE WITH IN THE SAME
ORBIT AROUND THE SUN AND WE
COULD NOT CHANGE IT IN A WAY
THAT WOULD MAKE IT THREATENING
EVEN IF WE WANTED TO AND SO THEN
AGAIN, THIS IS A PERFECT KIND
OF LABORATORY SETTING AND A
PERFECT WAY TO BE ABLE TO DO
THIS TEST BECAUSE THERE IS NO
THREAT THERE.
>> SO MANY LANE ON TWITTER ASKS
HAVE YOU HAD THE IDEA TO SLOW
DOWN THE ASTEROID INSTEAD OF AL
THING TRAJECTORY.
THAT IS TRENDING BECAUSE YOU
KNOW, AGAIN, TRYING TO CHANGE
THE SPEED OF SOMETHING IN SPACE
THAT TAKES A LOT OF ENERGY.
YOU DON'T HAVE TO.
WON A BE POSSIBLE TO JUST STOP
ALL TOGETHER AND OR HAVE IT GO
THE OTHER DIRECTION AROUND THE
SUN AND EVERYTHING IS MOVING
VERY, VERY FAST IN SPACE AROUND
THE SUN AND THEN, BUT, ABOUT IT
DOESN'T ARE MATTER.
ALL THAT MATTERS THAT IS
RELATIVE MOTION BETWEEN AN
ASTEROID THAT COULD PIECE THREAT
EARTH AND THE EARTH ITSELF SO
ALL WOULD YOU NEED DO IS REFLECT
IT ENOUGH SO IT DOESN'T HIT AND
DON'T HAVE TO WORRY ABOUT
STOPPING THE MOTION ALL TOGETHER
OR CHANGING IT A LARGE AMOUNT
AND HEAD TOED TO DO IT THE
AMOUNT THAT YOU NEED SO IT
DOESN'T HILT THE EARTH AND THEN,
THEN, THEN AND SO THAT IS
IMPORTANT BECAUSE THE MORE
ENERGY INVOLVED IN CHANGING THE
ORBIT WHERE IS A LARGER LAUNCH
VEHICLE AND LARGER SPACECRAFT
AND MAY NOT BE POSSIBLE TO DO A
LARGE CHANGE BUT ALL WE NEED IS
WHATEVER CHANGE MAY BE NEEDED.
WE HEAD TO DEFLECT IT ENOUGH.
IN THE FUTURE, IT DOESN'T FIND
ITSELF IN THE SAME PLACE AS THE
EARTH.
>> THEN I BEGIN THAT IS WHY
IMPORTANT TO FIND THEM EARLY,
RIGHT?
THE FURTHER AWAY IT IS FROM US
AND THE SMALLER IMPACT WOULD BE
NEEDED.
>> RIGHT.
RIGHT.
THAT IS WHY NASA FUNDS SURVEY
TELESCOPES TO THE OPERATE EVERY
NIGHT TO SURVEY THE SKY AND LOOK
FOR MOVING OBJECTS AGAINST THE
SKIES AND DETERMINING THESE ARE
NEW DISCOVERIES OR OK, WELL,
HERE IS ONE.
WE ARE SEEING IT AGAIN FROM A
FEW YEARS AGO BUILDING UP THE
CATALOG AND CALCULATING THE
ORBITS SO WE KNOW WHERE THEY ARE
IN THE FUTURE AND THEN YOU KNOW,
ALL THE ASTEROIDS OUT IN THE
ASTEROID BUT THE ONES THAT COME
TO EARTH'S NEIGHBORHOOD WE WANT
TO KEEP AN EYE ON THE NICE THING
IS MANY NEAR EARTH NEVER COME TO
EARTH'S VICINITY AND BUT THERE
IS A CLASS OF NEAR EARTH
ASTEROIDS THAT COME TO THE SOLAR
SYSTEM THAT COME CLOSE TO
EARTH'S ORBIT SO KEEP AN EYE ON
THOSE AND THEN, ALSO, TO
DISCOVER THE KNOWN ASTEROID OF
IMPACT TO EARTH THAT COULD CAUSE
DAMAGE THAT WE WANT TOP WORRY
ABOUT SENDING A SPACECRAFT OUT
WHICH IS FABULOUS BUT WITH WE
WANT TO MAKE SURE WE CONTINUE TO
SURVEY FOR ASTEROIDS AND THEN WE
UTILIZING 3:00 TELESCOPES ON THE
GROUND AND THEN, THEN, UTILIZING
TELESCOPE FOR SPACE USE THAT IS
BEING DEVELOPED CALL THE NEAR
EARTH OBJECT SURVEYOR AND TRYING
TO RUNNING THE CAPABILITIES TO
CONTINUE TO FILL OUT THE CATALOG
SO WE KNOW.
DO WE NEED SOMETHING LIKE A
MISSION LIKE DART OR OTHER
DEFLECTION TECHNIQUE THEN AGAIN,
YOU WANT TO DO THAT.
THERE IS SOMETHING THAT POSES
FUTURE IMPACT THREAT YOU WANT TO
KNOW YEARS OR DID HE DECADES IN
ADVANCE YOU DON'T WANT HAVE TO
DEFLECT IT VERY MUCH AND USE
THESE MORE TECHNIQUE AND YOU
HAVE THAT TIME AND AHEAD OF TIME
TO WORK IT.
>> ABSOLUTELY.
SO MATH THIS YOU ON TWITTER ASKS
WHAT EXPERIMENTS WERE DEN ON
EARTH TO SIMULATE THE IMPACT ON
DIE MORE SIS.
>> WELL THERE ARE RESEARCHERS
WHO WORK IN LABORATORY SETTINGS
WHO ACTUALLY IMPACTS WITH
BOULDERS THEY DO STUDY ON
METEORITE MATERIALS.
THEY TAKE THINGS THAT STIMULATE
ASTEROIDS AND DO IMPACTS IN THE
LAB, AND SO THAT TELLS SO MUCH,
BUT TO ACTUALLY DO WITH IT THE
REALS A VOID, IT IS IMPORTANT TO
UNDERSTAND WHAT ARE THE
PROPERTIES AND WHAT ARE EXTRA
FACTORS THERE AND WE KNOW
PHYSICS WITH PERFECT OBJECTS BUT
TO HAVE AND AN OBJECT LIKE YOU
SEND IT IN THE OTHER DIRECTION
AND UNDERSTAND THOSE PROPERTIES
JUST NOT THE EM PACT BUT WHAT
HAPPENS AFTERWARD AND HOW THAT
ADDS UP SO THAT THAT COULD BE
UNDERSTOOD THEN A LOT OF THAT
HAPPENS IN THE LAB AND IN THE
MODELING COMMUNITY DOING
CALCULATES AND THIS WILL BE A
GOOD TEST OF ALL OF THAT.
A GOOD SEGUE TO THE NEXT
QUESTION AND YOUTUBER ASKED THE
ORBITAL DEBRIS AFTER THE
COLLISION AND THE DANGER AND
SATELLITES SOONER OR LATER.
WELL, THIS IS SO FAR AWAY, THAT
I KNOW, THIS DOES NOT POSE A
DANGER TO SATELLITES ON EARTH OR
TO ANYWAY.
THAT IS NOT A PROBLEM AT ALL.
IF ANYTHING, THAT IS MORE WE
HAVE METER SHOWERS EVERY YEAR
WHEN THE EARTH COMINGS AROUND
THE SUN AND GOES THROUGH A
COMMENT'S AND WE HAVE OCCASIONAL
METEOROID A THAT ENTERS THE
ATMOSPHERE SEE A NICE FIREBALL.
THIS IS NOT GOING TO ADD TO ANY
OF THAT.
SIMON TAILOR ASKS WHAT THE
CHANCE OF MEETING THE
POSSIBILITY OF HAVING A LIFE
THREAT CONTINUING ASTEROID
STRIKE IN THE NEAR FUTURE.
>> WELL, THE NICE THING IS, THIS
IS A VERY RARE'S VENT AND
HOPEFULLY WE'LL EVERYBODY IN
HAVE TO DEAL WITH THIS IN OUR
LIFETIME IN OUR CHILDREN'S
LIFETIME AND GRAND CHILDREN'S
LIFETIMES AND BUT BETWEEN THE
SEARCH AND SOMETHING LIKE
ASTEROID COULD CAUSE LIKE
REGIONAL DAMAGE ON THE EARTH YOU
KNOW, IT MAY BE A ONCE IN A
MILLENNIUM TYPE EVENT OR EVEN
SOMETHING LIKE THE EVENTS IMPACT
OVER RUSSIA IN 2013 WHERE A
STRONG ASTEROID DISRUPTED IN THE
ATMOSPHERE AND SHOCK WAVE AND
STILL DID DAMAGE ON THE GROUND
AND THEN SO THAT WAS THE MOST
SERIOUS THING WE HAVE SEEN AND
MAYBE LIKE, MAYBE A ONCE A
CENTURY EVENT SO IT IS SO RARE
AND WE HOPEFULLY WILL NEVER DEAL
WELL THIS IN OUR LIFETIMES BUT,
THEN AGAIN, WE STILL WOULD WANT
TO LOOK JUST SO WE KNOW AND SO
CONTINUE SURVEYING THE SKIES AND
CATALOGS THE OBJECTS AND JUST SO
THERE IS NO SURPRISE AND SO
THAT, SO THAT SHALL I KNOW, WE,
WE MIGHT KNOW STATISTICS TO BE
ABLE TO INNER FROM THE RECORD
BUT WE STILL, WE STILL NEED TO
LOOK JUST TO KNOW.
>> WE NEED KNEE IS THROUGHOUT
BEFORE YOU CAN MITIGATE
ANYTHING.
SO MICHAEL, KILGORE ON FACEBOOK
ASKS IF DART IS SUCCESSFUL WOULD
IT HELP ENABLE NASA TO DEFLECT
LARGER ASTEROIDS?
F. SO WHAT IS THE LARGEST
ASTEROIDS THAT COULD BE
REDIRECTED.
>> WHERE WILL SHALL I AM NOT
SURE OF THAT ANSWER OFF HANDING
BUT CERTAINLY, AND IN THE SIZE
REGIME, WELL, THE SATELLITE THAT
IS GOING TO BE IMPACTED IS ABOUT
160METERS IN SIZE, AND THAT
KIND OF REPRESENTS THE SORT OF
THE SIZE RANGE THAT AND LARGER
WITH WHICH CONGRESS HAS TASKED
NASA WITH, YOU KNOW, FINDING
THESE ASTEROIDS BECAUSE THESE
COULD POSE REGIONAL DAMAGE
THREAT TO THE EARTH SHOULD ONE
IMPACT SO THE NICE THING THAT IS
FOR THAT SIZE, A TECHNIQUE LIKE
DART, YOU KNOW, COULD BE WHICH
IS WHY THIS IS BEING TESTED IF
THERE WERE, IF THERE WERE
ASTEROIDS THAT WERE MUCH LARGER
AND SOMETHING THAT SUPPOSED
IMPACT THAT WAS MUCH LARGER AND
PHYSICIAN THERE WAS, FAR LESS
NOTICE, SO IT WAS NOT POSSIBLE
TO DIVERT WITH IT THE KINETIC
IMPACT OR TECHNIQUE THERE ARE
OTHER TECHNIQUES THAT COULD BE
UTILIZED AND, AND, IN THE CASE
AND THERE WAS A LOT OF WARNING
AND SOME OTHER TECHNIQUES LIKE
GRAVITY TRACTOR JUST USING
GRAVITY AND NATURE AND HAVING A
SPACECRAFT SITTING NEXT TO
ASTEROID AND LETTING THE
SPACECRAFT TUG ON THE ASTEROID
WITH THE NATURAL FORCE OF
GRAVITY OR ENHANCING IT BY
PICKING UP A BOULDER OR WHAT
HAVE YOU, THEN, THAT IS ANOTHER,
THAT IS ANOTHER TECHNIQUE COULD
BE USED WITH LONG NOTICE AND
THERE IS ALSO, THERE IS ALSO,
YOU KNOW, YOU SEE IT IN THE
MOVIES BUT NEVER QUITE THE RIGHT
WAY, FOR INSTANCE, NUCLEAR
DEFLECTION IS USED, BUT THAT
REALLY, THE GOAL WOULD NOT BE TO
BLOW SOMETHING UP AGAIN IT US
ABOUT DEFLECTION, JUST, JUST
NUDGING IT OF THE PATH AND
SOMETHING THAT IS VERY LARGE,
THEN IT WOULD BE POSSIBLE TO
USING DEVICE TO DO DEFLECTION
AND SO, SOB THERE ARE OTHER
TECHNIQUES THAT COULD BE USED
BUT THE KINETIC IMPACT OR
TECHNIQUE CAN BE USED WITH THE
ASTEROIDS THAT FOR THAT SMALLER
RANGE AND THEN ACTUALLY FAR MORE
SO THE ODDS ARE, THAT IF
SOMETHING EVER DOES POSE IMPACT
THREAT, IT WOULD PROBABLY BE IN
THAT SIZE RANGE SO IT IS NICE TO
TEST THIS TECHNIQUE BUT THEN
CONTINUE MODELING WITH THE OTHER
TECHNIQUES SO IF THEY ARE
REQUIRED FOR LARGER SIZE, YOU
KNOW, THAT IS SOMETHING THAT HAS
BEEN STUDIED, SO, AGAIN, THERE
IS NO, THERE IS NO ONE SOLUTION
BUT YOU TRY TO DO STUDY IN ALL
AREAS SO YOU ARE PREPARING TO
HAVE A NICE TOOLBOX TO WORK.
FOES THOSE TUNING IN REFRESH TO
WRITE IN THE COMMENT BOX OF
WHEREVER ARE WATCHING TODAY.
SO KELLY, ROBERT NOWLAND ON
FACEBOOK ASKS BEFORE THE PROCESS
GUESS DOWN, DO YOU BELIEVE IT
WILL MOVE THE ASTEROIDS
SIGNIFICANTLY.
>> WELL, NO.
IN FACT WE REALLY COULD NOT.
AS SAW IN THE ANIMATION, SO YOU
KNOW THE DARK SPACECRAFT THAT IS
FAR SMALLER THAN THIS LITTLE
MOON AND CERTAINLY, A WHOLE LOT
SMALLER.
AND THE GOAL IS NOT TO MOVE IT
SIGNIFICANTLY, IT IS JUST TO
TEST DEFLECTION TECHNIQUE TO
CHANGE THE PERIOD OF THE ORBIT
THAT IMPACT AND BECAUSE AGAIN
THAT WOULD BE NEEDED IN THE
EVENT OF ACTUAL IMPACT THREAT TO
BE ABLE TO DIVERT IT A SMALL
AMOUNT AND SO, SO AS YOU CAN SEE
HERE.
KNOW, THE SIZE DIFFERENCE IS
PRETTY LARGE, AND SO, THE CHANGE
IN THE SPEED OF THE ORBIT IS
ALSO GOING TO BE SMALL OF THE
ORBIT AROUND BUT AGAIN THAT IS
ALL NEEDED AND WE DON'T NEED TO
DO A LARGE DEFLECTION.
AND TO BE ABLE TO GET THE DATA
ON WHAT COMES OUT OF THE FIRST
EVER PLANETARY DEFENSE TEST AND
REALLY VALUABLE AND THEN USEFUL
FOR MODELING OTHER CASES WHERE
MAYBE SOMETHING LARGER IS NEEDED
BUT, THEN, IT IS NOT A LARGE
DEFLECTION HERE.
BUT CERTAINLY, A SIGNIFICANT ONE
THAT COULD MEASURED FROM EARTH,
THAT IS THE PLAN HERE AND FOLKS
ARE GEARING UP FOR THAT TO BE
READY TO WATCH THAT.
>> DOTS THE SPACECRAFT HAVE A
CRAM TO RECORD THE IMPACT?
WELL, IT HASES A CAMERA,
ACTUALLY, TO GUIDE THE
TRAJECTORY SO A SIMPLE
SPACECRAFT AND WHAT IT NEEDS TO
BE SOLAR PANELS TO GENERATE
ELECTRICITY AND THE OTHER
INSTRUMENTS NEEDED FOR IT TO
NAVIGATE.
IT IS DOES AUTONOMOUSLY AND
IMPACT AND COMPUTER WORK THAT IS
DONE TO MAKE SURE IT CAN LINE
UP.
AND THE LIGHT DELAY TIME AND SO
IT IS GOING LINE UP ITSELF BASED
ON THAT CAMERA AND SO THAT IS
GOING TO BE ALL FOR TRACKING TO
THE ASTEROID AND THE ITALIAN
SPACE AGENCY HAS CONTRIBUTED A
SMALL SAT THAT IS GOING TO
ACTUALLY TAKE IMAGE OF THE
IMPACT THAT IS GOING TO CONTINUE
TO CAST PAST THE AND LOOK FOR
LONGER PERIOD OF TIME TO
DETERMINE WHAT SORT OF CHANGE
WAS MADE IN THE PERIOD OF THE
ORBIT ABOUT DIDYMOS.
>> SO ORBITAL CLASH ON YOUTUBE
ASK HOW WILL IT IMPROVE THE
ANALYSIS OF THE IMPACT OF THE
DARK SPACECRAFT?
>> CERTAINLY.
JUST GETTING THAT LOOK AT THE
IMPACT YOU KNOW, THAT WOULD BE
VALUABLE AND WHATEVER MAY BE
CAPTURED DURING THAT SHORT
PERIOD OF TIME AND THAT, THAT
THE CUBE WILL BE CONTINUING BY
THE DIDYMOS SYSTEM, SO ANY DEAL
WITH WILL BE VALUABLE FOR SEEING
IF THERE IS MUCH IN THE WAIVE
IMPACTED FROM THE IMPACT AND ANY
MATERIAL COMING OFF OF, SO THAT
WILL BE VALUABLE FOR
UNDERSTANDING WHAT ACTUALLY
HAPPENED AND TURNING THAT INTO
MODELING THAT COULD BE USED TO
UNDERSTAND IN GENERAL HOW CAN
IMPACT ORBITALS AND THE
INTERACTION WITH ASTEROID
MATERIAL HOW THAT WORKS.
DIDYMOS.
>> WELL THAT IS WHERE ASTRONOMER
IN THE GROUND ARE SO IMPORTANT
HERE.
WITH HAVING A LARGE TELESCOPES
LOOKING AT THE DIDYMOS SYSTEM
AND LOOKING AT THE LIGHT COMING
FROM THE SYSTEM WILL BE GOING UP
AND DOWN, UP AND DOWN IN THIS
LIGHT CURVE AS THOSE TWO
ASTEROIDS REVOLVED AROUND EACH
OTHER AND, THE FOLKS USING THE
MODELING HERE CAN KIND OF BACK
OUT FROM THAT AND HOW THE PERIOD
OF THE ORBIT CHANGED AND OTHERS
WHO FROM THE DART TEAM WHO DO
THE MODELING OF WHAT MAY HAPPEN
ONCE IT IMPACTS AND USE ALL OF
THAT INFORMATION AS WELL AS A
PROPERTIES AND THAT ARE KNOWN
ABOUT THE ASTEROID FROM THE
CAMERAS AND THIS WAS MENTIONED
AND FROM OTHER GROUND BASED
OBSERVATIONS AND, AND PUTTING
ALL OF THAT TOGETHER, TO HAVE A
BETTER UNDERSTANDING OF WHAT
HAPPENED AND YES, ALL THE
MODELING STATES THIS WITH BE
SOMETHING MEASURABLE FROM THE
EARTH AND THIS IS A COOL
PARTNERING BETWEEN SPACECRAFT
TEAM AND GROUND BASE ASTRONOMERS
THEN REALLY EXCITING TO SEE HOW
THIS WILL PLAY OUT.
>> WE CAN'T.
A IS WHY IT IS, IT IS A REALLY
GOOD LABORATORY FOR THIS TESTS
TO HAVE THIS BINARY ASTEROID
SYSTEM, COME WITHIN THE DISTANCE
TO EARTH WHERE IT COULD BE
SAFELY OBSERVED FROM THE EARTH
AND DO THIS TEST AT THE SAME
TIME, SO IT IS REALLY ACTUALLY A
UNIQUE OPPORTUNITY THAT MATURE
HAS GIVEN US AND IN A NICE
SETTING WHERE THERE IS NO HAZARD
TO EARTH.
IT IS PERFECT.
>> IT IS GOOD FOR THAT.
IT IS NOT A THREAT TO EARTH.
SO INTERESTING ON YOUTUBE ASKS
YOU COULD TELL US ABOUT DART'S
SOLAR PANEL ARRANGE.
DOES THE OFFSET ARRANGEMENT HELP
IT NAVIGATE BETTER?
>> THAT IS INTERESTING.
I AM NOT SURE HOW TO ANSWER THE
QUESTION.
BUT THESE ARE, THESE ARE,
FASCINATING SOL RAY ARRAYS THE
ROLLOUT SOLAR ARRAYS THAT HAVE
BEEN USED ON THE INTERNATIONAL
SPACE STATION AND SO THIS IS,
THIS IS A NEAT OPPORTUNITY TO
TAKE A TEST OF TECHNOLOGY AND
USE IT NOW ON THE SPACECRAFT
AND, AND, AND 3:00 PI DON'T
THINK THAT THEIR PLACEMENT IS
IMPORTANT AND ACCEPT THEY JUST
NEED NO NOT BE IN THE WAY OF
INSTRUMENTATION ON DART BUT A
NEAT CHANCE TO UTILIZE THIS
TECHNOLOGY HAS BEEN USED ON THE
INTERNATIONAL SPACE STATION.
>> SO KELLY, WE HAVE TIME FOR
JUST ONE MORE QUESTION.
AND I WOULD LIKE TO END WITH
YOUR CAREER.
BECAUSE YOUR CAREER AT NASA
SOUNDS SO INTERESTING AND FOR
ANYONE LISTENING TODAY.
WAS YOUR PATH LIKE IN THE
CURRENT CAREER WHAT ADVICE WOULD
YOU HAVE FOR SOMEONE WANTING TO
PURSUE SINK PLANETARY DEFENSE?
>> WELL, I WAS RESEARCHER
ASTRONOMER AT GODDARD
SPACEFLIGHT CENTER BEFORE A
BECAME A BUREAUCRAT AND NOW IN A
SPECIAL WHERE I CAN SUPPORT
FANTASTIC PEOPLE AND, AND HELP
TO MANAGE A PROGRAM THAT KEEPS
ALL OF THESE EFFORTS GOING
FIGHTING AND FOLLOWING UP AND
CHARACTERIZING THEM AND
CALCULATING ORBIT SO IT IS A
REAL PRIVILEGE TO GET DO THIS
AND WORK WITH SOME FANTASTIC
PEOPLE AND SUPPORT THEM AND
THEN, SO, SO SCIENCE IS A ROOT.
YOU WITH A WAS ASTRONOMER AND
PEOPLE ENGINEERS WHO WERE
INVOLVED ON THE DART MISSION AND
SEE YOU INTERESTS BUT I MUST
SAY, TO WORK IN PLANETARY
DEFENSE AND AT NASA I SAY IT IS
JUST SCIENCE AND ENGINEERS AND
BE IN BIG TRUNNEL AND NEED ALL
KINDS OF PEOPLE SAN BUDGET AND
PUBLIC AFFAIRS PEOPLE AND WE
NEED, WE NEED, L.A. YOU ARE
POLICY PEOPLE AND SO MANY WAYS
TO SUPPORT ANY FIELD AND SO, IT
IS POSSIBLE TO PURSUE YOUR
PASSION AND ALSO BE INVOLVED IN
SOMETHING LIKE PLAN EAT RAILROAD
DEFENSE OR OTHER ACTIVITIES IN
NASA.
>> WELL THANK YOU SO MUCH AGAIN
FOR JOINING US AGAIN TODAY AND
EVERYTHING YOU DO.
IT HAS BEEN A PLEASURE.
A THANK YOU, JOSH, FOR ALL YOU
DO, TOO.
THANK ALL FOR WATCHING AT HOME.
YOU CAN COOP UP WITH THE MISSION
ON SOCIAL MEDIA BY USING THE
HASHTAG DART MISSION AND YOU CAN
ALSO FOLLOW NASA'S SOLAR SYSTEM
ON TWITTER, FACEBOOK AND
INSTAGRAM.
YOU CAN KEEP UP WITH NASA'S
PLANETARY DEFENSE COORDINATION
OFFICE AND AS STROYED RELATED
EFFORTS ON TWITTER FOLLOWING AND
FOR THE LATEST NEWS ON DART
VISIT WWW.NASA.GOV/DART
MAKE SURE TO YOU WATCH THE DART
LAUNCH CURRENT SCHEDULE FOR
NOVEMBER 24th AT 1:20A.M.
EASTERN TIME.
THANKS SO MUCH AGAIN.
KEEP LOOK UP.