1 00:00:11,728 --> 00:00:14,464 PLANETARY DEFENSE IS 2 00:00:14,531 --> 00:00:16,166 FINDING ASTROS BEFORE THEY FIND 3 00:00:16,232 --> 00:00:17,867 US BUT ALSO GETTING ASTEROID 4 00:00:17,934 --> 00:00:18,968 BEFORE THEY GET US. 5 00:00:19,035 --> 00:00:21,171 MY NAME IS KELLY AND PLANETARY 6 00:00:21,237 --> 00:00:22,872 DEFENDER IN THE DEFENSE 7 00:00:22,939 --> 00:00:24,474 COORDINATION OFFICE, I IMAGINE 8 00:00:24,541 --> 00:00:28,978 THE OBSERVATION PROGRAMS. 9 00:00:29,045 --> 00:00:30,880 IT ADDRESSES FINDING THE 10 00:00:30,947 --> 00:00:32,982 ASTEROIDS AND HANDLES GETTING 11 00:00:33,049 --> 00:00:37,187 THE ASTROIDS THIS IS THE DARK 12 00:00:37,253 --> 00:00:39,589 SPACECRAFT. 13 00:00:39,656 --> 00:00:41,791 AND SMACK AN ASTEROID. 14 00:00:41,858 --> 00:00:43,193 IT IS FANTASTIC TO SEE IT IN 15 00:00:43,259 --> 00:00:44,994 REAL LIFE AND DART WILL BE 16 00:00:45,061 --> 00:00:48,498 CHANGING NERD OF THE ORBIT, AND 17 00:00:48,565 --> 00:00:49,799 REALLY THAT IS ALL THAT IS 18 00:00:49,866 --> 00:00:51,201 NEEDED IN THE EVENT THAT 19 00:00:51,267 --> 00:00:53,503 ASTEROID IS DISCOVERED WELL 20 00:00:53,570 --> 00:00:55,405 AHEAD OF TIME BEFORE IT MIGHT 21 00:00:55,472 --> 00:00:56,506 IMPACT EARTH. 22 00:00:56,573 --> 00:00:58,808 YOU CANNOT HAVE A MISSION LIKE 23 00:00:58,875 --> 00:01:00,210 DART WITHOUT FINDING THE 24 00:01:00,276 --> 00:01:02,011 ASTEROID FIRST THAT INVOLVES 25 00:01:02,078 --> 00:01:04,147 SEARCHING FOR ASTEROID GETTING A 26 00:01:04,214 --> 00:01:07,050 NEW CATALOG AND CALCULATING 27 00:01:07,117 --> 00:01:09,452 ORBIT TRACKING THEM KEEPING AN 28 00:01:09,519 --> 00:01:10,153 EYE ON THEM. 29 00:01:10,220 --> 00:01:13,056 I LOVE ASTRONOMY, STAR TREK. 30 00:01:13,123 --> 00:01:15,058 I BECOME A RESEARCH AGE MY FIRST 31 00:01:15,125 --> 00:01:17,460 OBSERVING RUN EVER WAS OBSERVING 32 00:01:17,527 --> 00:01:20,163 THE EM PACT OF JUPITER IN A 33 00:01:20,230 --> 00:01:21,464 NEVER WOULD HAVE KNOWN THAT 34 00:01:21,531 --> 00:01:23,366 SOMEHOW MY CAREER WOULD COME 35 00:01:23,433 --> 00:01:25,568 FULL CIRCLE TO BE A PART OF 36 00:01:25,635 --> 00:01:27,270 SOMETHING THAT AFFECTS EVERY DAY 37 00:01:27,337 --> 00:01:29,773 LIVES THEN I FEEL HONORED THEN 38 00:01:29,839 --> 00:01:31,674 HUMBLED TO BE WORKING IN THE 39 00:01:31,741 --> 00:01:33,376 FIELD OF DEFENSE BECAUSE IT CAN 40 00:01:33,443 --> 00:01:34,978 EFFECT PEOPLE AND IT IS EXCITING 41 00:01:35,044 --> 00:01:36,679 TO HAVE THAT KIND OF ROLE IN AN 42 00:01:36,746 --> 00:01:39,482 AREA OF SCIENCE THAT HAS SUCH SA 43 00:01:39,549 --> 00:01:41,484 BROADER IMPACT, YOU KNOW, 44 00:01:41,551 --> 00:01:48,892 FIGURATIVELY AND LITERALLY. 45 00:01:48,958 --> 00:01:49,893 >> HI EVERYONE. 46 00:01:49,959 --> 00:01:51,895 I AM PUBLIC AFFAIRS OFFICER HERE 47 00:01:51,961 --> 00:01:53,797 AT NASA AND SO EXCITED TO BE 48 00:01:53,863 --> 00:01:56,299 JOINED TODAY BY DR.KELLY FAST 49 00:01:56,366 --> 00:01:57,901 YOU HAD THE OPPORTUNITY TO MEET. 50 00:01:57,967 --> 00:01:59,502 KELLY, THANKS SO MUCH FOR 51 00:01:59,569 --> 00:02:00,303 JOINING US TODAY. 52 00:02:00,370 --> 00:02:02,906 >> WELL, THANK YOU, JOSH I AM 53 00:02:02,972 --> 00:02:04,340 GLAD TO HAVE THIS OPPORTUNITY TO 54 00:02:04,407 --> 00:02:05,241 ANSWER QUESTIONS. 55 00:02:05,308 --> 00:02:07,243 >> KELLY US HERE TO ANSWER YOUR 56 00:02:07,310 --> 00:02:08,044 BURNING QUESTIONS ABOUT 57 00:02:08,111 --> 00:02:11,347 PLANETARY DEFENSE AT NASA AND 58 00:02:11,414 --> 00:02:12,749 THE DARK MISSION AND YOU HAVE A 59 00:02:12,816 --> 00:02:13,650 QUESTION TO ASK. 60 00:02:13,716 --> 00:02:16,152 SEN IT IN USING THE HASHTAG ASK 61 00:02:16,219 --> 00:02:18,454 NASA OR WRITING IN THE COMMENT 62 00:02:18,521 --> 00:02:19,956 BOX WHEREVER YOU ARE WATCHING 63 00:02:20,023 --> 00:02:22,058 TODAY'S BROADCAST IN YOUR VIDEO 64 00:02:22,125 --> 00:02:23,860 WE LEARNED ABOUT THE ROLE WITH 65 00:02:23,927 --> 00:02:27,263 NASA'S PLANETARY DEFENSE AND THE 66 00:02:27,330 --> 00:02:28,364 DART MISSION AND YOU HAVE A 67 00:02:28,431 --> 00:02:29,666 GREAT LINE THAT SAYS YOU NEED TO 68 00:02:29,732 --> 00:02:31,267 FIND ASTEROIDS BEFORE THEY FIND 69 00:02:31,334 --> 00:02:33,770 US SO IF WE NEED TO WE CAN GET 70 00:02:33,837 --> 00:02:35,071 THEM BEFORE THEY GET US. 71 00:02:35,138 --> 00:02:36,873 CAN YOU TELL ME ABOUT WHY THAT 72 00:02:36,940 --> 00:02:38,575 IS IMPORTANT AND FOR MISSION 73 00:02:38,641 --> 00:02:52,789 LIKE DART? 74 00:02:52,856 --> 00:02:53,890 EVEN THOUGH DART IS A VERY 75 00:02:53,957 --> 00:02:57,493 IMPORTANT TEST HERE TO GET TOOLS 76 00:02:57,560 --> 00:02:59,395 IN THE TOOLBOX SHOULD ASTEROID 77 00:02:59,462 --> 00:03:01,197 BE DISCOVERED THAT DOES POSE 78 00:03:01,264 --> 00:03:02,298 IMPACT THREAT. 79 00:03:02,365 --> 00:03:04,133 WE DO HAVE TO DO THE OTHER SIDE 80 00:03:04,200 --> 00:03:05,535 OF THE COIN WHICH IS PRIMARY 81 00:03:05,602 --> 00:03:07,737 MISSION OF FINDING THE ASTEROIDS 82 00:03:07,804 --> 00:03:10,740 THEN SO THE PROGRAM AT NASA THE 83 00:03:10,807 --> 00:03:13,142 OBSERVATION PROGRAM FUNDS 84 00:03:13,209 --> 00:03:16,846 PROJECTS TO TAKE TELESCOPES 85 00:03:16,913 --> 00:03:19,249 EVERY NIGHT SURVEYING THE SKIES 86 00:03:19,315 --> 00:03:22,352 LOOKING FOR NEW NEAR EARTH 87 00:03:22,418 --> 00:03:23,953 ASTEROIDS AND CALCULATING THE 88 00:03:24,020 --> 00:03:27,156 ORBITS TELESCOPES LIKE THE 89 00:03:27,223 --> 00:03:28,558 TELESCOPES AND UNIVERSITY OF 90 00:03:28,625 --> 00:03:30,660 HAWAII OR THE CATALINA SKY 91 00:03:30,727 --> 00:03:31,961 SURVEY AT THE UNIVERSITY OF 92 00:03:32,028 --> 00:03:35,164 ARIZONA OTHER TELESCOPES AND 93 00:03:35,231 --> 00:03:37,066 BOTH FUNDED BY NASA AND THEN, 94 00:03:37,133 --> 00:03:39,369 ALSO, ALSO, OBSERVATORIES AROUND 95 00:03:39,435 --> 00:03:41,271 THE WORLD CONTINUING TO FOLLOW 96 00:03:41,337 --> 00:03:44,073 UP THOSE DISCOVERIES AND THEN IN 97 00:03:44,140 --> 00:03:53,483 ORDER TO HAVE CATALOG AND YOU 98 00:03:53,549 --> 00:03:54,684 WOULD WANT TO KNOW THAT WELL 99 00:03:54,751 --> 00:03:56,286 AHEAD OF TIME AND THAT IS WHY 100 00:03:56,352 --> 00:03:57,987 YOU WANT TO FIND THEM AND WELL 101 00:03:58,054 --> 00:04:00,490 BEFORE THEY FIND US. 102 00:04:00,556 --> 00:04:01,691 >> THAT IS A GREAT ANSWER, THANK 103 00:04:01,758 --> 00:04:02,592 YOU, KELLY. 104 00:04:02,659 --> 00:04:02,992 ALL RIGHT. 105 00:04:03,059 --> 00:04:03,393 ALL RIGHT. 106 00:04:03,459 --> 00:04:04,327 ALL THE QUESTIONS ARE STARTING 107 00:04:04,394 --> 00:04:07,130 TO FLY IN SO LET'S GET START AS 108 00:04:07,196 --> 00:04:08,531 REMINDER IF YOU HAVE A QUESTION 109 00:04:08,598 --> 00:04:10,133 YOU LIKE TO ASK KELLY ABOUT 110 00:04:10,199 --> 00:04:12,135 PLANETARY DEFENSE OR THE DART 111 00:04:12,201 --> 00:04:14,337 MISSION SEN IT IN USING HASHTAG 112 00:04:14,404 --> 00:04:16,940 ASK NASA AND BY WRITING IN THE 113 00:04:17,006 --> 00:04:18,942 COMMENT BOX WHEREVER YOU ARE 114 00:04:19,008 --> 00:04:20,343 WATCHING TODAY'S BROADCAST. 115 00:04:20,410 --> 00:04:22,745 SO KELLY ON TWIT OTHER ASKS WHAT 116 00:04:22,812 --> 00:04:25,348 KIND OF LIKE HEARD MODELING ARE 117 00:04:25,415 --> 00:04:26,749 DONE ON A MISSION LIKE THIS? 118 00:04:26,816 --> 00:04:28,952 FROM WHAT I UNDERSTAND RESOLVING 119 00:04:29,018 --> 00:04:31,354 POWER AND TELESCOPES IS USUALLY 120 00:04:31,421 --> 00:04:32,956 NOT ENOUGH TO RESOLVE ASTEROIDS 121 00:04:33,022 --> 00:04:34,257 SO HOW DO YOU IN FOR THE 122 00:04:34,324 --> 00:04:36,659 GEOMETRY WITHOUT DIRECTLY 123 00:04:36,726 --> 00:04:37,360 OBSERVING IT? 124 00:04:37,427 --> 00:04:38,861 WELL, THAT IS A GOOD POINT 125 00:04:38,928 --> 00:04:42,365 BECAUSE THE ASTEROIDS SYSTEM IS 126 00:04:42,432 --> 00:04:44,667 GOING TO PASS EARTH WELL AND 127 00:04:44,734 --> 00:04:46,269 WELL AWAY FROM EARTH BUT IT IS A 128 00:04:46,336 --> 00:04:47,470 CHANCE TO LOOK AT IT WITH 129 00:04:47,537 --> 00:04:49,672 TELESCOPES WHEN DART IMPACTS 130 00:04:49,739 --> 00:04:51,674 THEN THAT IS GOING HOW WE 131 00:04:51,741 --> 00:04:53,176 DETERMINE WHAT HAPPENED AFTER 132 00:04:53,242 --> 00:04:56,579 DART IMPACTED THE MOON OF P AND 133 00:04:56,646 --> 00:04:59,182 BUT, BUT, IT IS STILL SO FAR 134 00:04:59,248 --> 00:05:01,684 AWAY LIKE IT WAS MENTIONED AND 135 00:05:01,751 --> 00:05:03,186 QUESTIONED IN RESOLVING POWER 136 00:05:03,252 --> 00:05:04,420 AND SMALL AND YOU SEIZE THIS 137 00:05:04,487 --> 00:05:05,121 POINT OF LIFE. 138 00:05:05,188 --> 00:05:07,023 THIS POINT OF LIGHT GETS 139 00:05:07,090 --> 00:05:09,025 BRIGHTER, FAINTER, BRIGHTER, 140 00:05:09,092 --> 00:05:12,929 FAINTER, AS THAT MOON GOES 141 00:05:12,996 --> 00:05:18,034 AROUND DIDAMOS AND PASSES IN 142 00:05:18,101 --> 00:05:19,936 FRONT, YOU SEE YOU BEHIND, YOU 143 00:05:20,003 --> 00:05:21,337 SEE ONE BLOCKING THE OTHER SORE 144 00:05:21,404 --> 00:05:23,239 THE LIGHT GOES UP AND DOWN, AND 145 00:05:23,306 --> 00:05:25,842 SO THE PERIOD WITH WHICH THAT 146 00:05:25,908 --> 00:05:27,443 LIGHT GOES UP AND DOWN WHICH 147 00:05:27,510 --> 00:05:29,445 REPRESENTS THE TIME AND THAT 148 00:05:29,512 --> 00:05:32,749 ORBIT THINK OF MOON AROUND, THAT 149 00:05:32,815 --> 00:05:35,151 IS WHAT WILL BE CHANGED BY DART. 150 00:05:35,218 --> 00:05:44,660 DART WILL IMPACT AND CHANNEL THE 151 00:05:44,727 --> 00:05:46,062 SPEED AND CANNOT RESOLVE THE 152 00:05:46,129 --> 00:05:47,363 INDIVIDUAL ASTEROIDS AND LOOK 153 00:05:47,430 --> 00:05:49,165 THAT COMBINED LIGHT THROUGH 154 00:05:49,232 --> 00:05:51,067 MODELING THE ASTRONOMY ON THE 155 00:05:51,134 --> 00:05:53,169 INVESTIGATION TEAM DID A 156 00:05:53,236 --> 00:05:55,071 FANTASTIC JOB OF BACKING OUT 157 00:05:55,138 --> 00:05:56,472 THAT INFORMATION TO BE ABLE TO 158 00:05:56,539 --> 00:05:59,175 ACCESS WHAT EFFECTS DID THAT 159 00:05:59,242 --> 00:06:02,178 DART IMPACT HAVE ON THE ORBIT 160 00:06:02,245 --> 00:06:04,113 THEN EVENTUALLY ON OUR 161 00:06:04,180 --> 00:06:07,016 CAPABILITY TO DEFECT AN ASTEROID 162 00:06:07,083 --> 00:06:10,219 OF THAT SIZE REGIME SHOULD WE BE 163 00:06:10,286 --> 00:06:16,626 FACED WITH THAT NEED. 164 00:06:16,692 --> 00:06:18,327 THAT IS A GOOD POINT AND 165 00:06:18,394 --> 00:06:19,929 ACTUALLY TARGETING THE ASTEROID 166 00:06:19,996 --> 00:06:21,230 MOON AND IMPORTANT FOR THIS 167 00:06:21,297 --> 00:06:23,132 EXPERIMENT. 168 00:06:23,199 --> 00:06:23,399 >> RIGHT. 169 00:06:23,466 --> 00:06:24,033 RIGHT. 170 00:06:24,100 --> 00:06:25,334 DINES OF A NICE OPPORTUNITY 171 00:06:25,401 --> 00:06:27,336 THAT, THAT NATURE HAS GIVEN US 172 00:06:27,403 --> 00:06:30,440 TO BE ABLE TO TEST LIKE A 173 00:06:30,506 --> 00:06:32,442 TECHNIQUE AND LABORATORY SETTING 174 00:06:32,508 --> 00:06:34,644 BY HAVING A BINARY ASTEROID LIKE 175 00:06:34,710 --> 00:06:35,244 THIS. 176 00:06:35,311 --> 00:06:36,546 IT IS MUCH EASIER TO DETECT FROM 177 00:06:36,612 --> 00:06:38,347 THE EARTH WHAT AN IMPACT LIKE 178 00:06:38,414 --> 00:06:40,950 DART MAY HAVE ON THE ORBIT OF 179 00:06:41,017 --> 00:06:46,055 LIKE THE MOON LIKE AROUND RATHER 180 00:06:46,122 --> 00:06:47,557 THAN TEST AND CHANGING THE 181 00:06:47,623 --> 00:06:51,060 ASTRID'S ORBIT AROUND THE SUN 182 00:06:51,127 --> 00:06:52,762 AND WILL HAVE LITTLE OR NO 183 00:06:52,829 --> 00:06:56,365 IMPACT IN THAT SENSE NOON CHANGE 184 00:06:56,432 --> 00:07:00,369 BUT IT IS THAT ORBIT AROUND BY 185 00:07:00,436 --> 00:07:02,472 THE MOON THAT WILL BE AFFECTED 186 00:07:02,538 --> 00:07:03,573 AND THAT IS MUCH EASIER TO 187 00:07:03,639 --> 00:07:05,608 MEASURE IN THE ASTEROID SYSTEM 188 00:07:05,675 --> 00:07:07,410 SO EVERYTHING COMES TOGETHER 189 00:07:07,477 --> 00:07:10,213 WHERE WE ARE JUST KINDLY COMES 190 00:07:10,279 --> 00:07:11,514 TO THE RIGHT POSITION, WHERE 191 00:07:11,581 --> 00:07:13,015 TELESCOPES CAN WATCH FROM EARTH 192 00:07:13,082 --> 00:07:22,024 AND SEE WHAT THE CHANGE IS AND 193 00:07:22,091 --> 00:07:24,427 INTO UNDERSTANDING THE KINETIC 194 00:07:24,494 --> 00:07:26,329 IMPACT AND TECHNIQUE IN GENERAL 195 00:07:26,395 --> 00:07:27,730 AND DART TEAM AND THE 196 00:07:27,797 --> 00:07:29,432 ASTRONOMIES ON THE TEAM WILL 197 00:07:29,499 --> 00:07:31,134 COMMUNICATE AND FEED THAT INTO 198 00:07:31,200 --> 00:07:33,536 THE MODELING SO THEY CAN TURN 199 00:07:33,603 --> 00:07:36,539 THAT INTO SOME REAL RESULTS 200 00:07:36,606 --> 00:07:39,742 ABOUT WHAT, A WE CAN EXPECT, 201 00:07:39,809 --> 00:07:42,845 SHOULD WE EVER NEEDED TO DO THIS 202 00:07:42,912 --> 00:07:44,547 FOR REAL, THEN, THE NICE THING 203 00:07:44,614 --> 00:07:46,449 ABOUT THE SYSTEM IS, YOU KNOW, 204 00:07:46,516 --> 00:07:48,351 POSES NO THREAT TO EARTH AND WE 205 00:07:48,417 --> 00:07:49,652 COULDN'T MAKE IT A THREAT TO 206 00:07:49,719 --> 00:07:51,254 EARTH AND WONDERFUL LABORATORY 207 00:07:51,320 --> 00:07:53,356 THAT NATURE HAS PUT AT THE RIGHT 208 00:07:53,422 --> 00:07:55,958 PLACE, AT THE RIGHT TIME, WE CAN 209 00:07:56,025 --> 00:07:57,260 USE THIS COMBINATION OF 210 00:07:57,326 --> 00:08:00,163 GROUND-BASED TELESCOPES AND THE 211 00:08:00,229 --> 00:08:01,864 SPACECRAFT TO DO THIS EXPERIMENT 212 00:08:01,931 --> 00:08:04,000 AND WHICH IS GREAT BECAUSE, IT 213 00:08:04,066 --> 00:08:05,501 IS NICE DO THIS AT A TIME WHEN 214 00:08:05,568 --> 00:08:07,403 WE DON'T NEED IT, SO IF THERE IS 215 00:08:07,470 --> 00:08:08,804 A TIME WE NEED IT. 216 00:08:08,871 --> 00:08:10,206 IT IS HOT THE FIRST TIME WE EVER 217 00:08:10,273 --> 00:08:12,808 TRIED TO KIND OF TEST SOME OF 218 00:08:12,875 --> 00:08:14,010 THE TECHNIQUES THAT MAY BE IN 219 00:08:14,076 --> 00:08:19,415 THE TOOLBOX. 220 00:08:19,482 --> 00:08:21,017 >> THAT IS A GOOD POINT. 221 00:08:21,083 --> 00:08:22,118 HAVE ANSWERED THE QUESTION ON 222 00:08:22,185 --> 00:08:24,420 YOUTUBE WHO ASKED WHAT IF THE 223 00:08:24,487 --> 00:08:27,223 IMPACT TEST MAKES IT GO FORWARD 224 00:08:27,290 --> 00:08:27,924 EARTH. 225 00:08:27,990 --> 00:08:29,225 IT IS IT AT ALL POSSIBLE THAT 226 00:08:29,292 --> 00:08:31,427 DART CAN SOMEHOW REDIRECT THE 227 00:08:31,494 --> 00:08:33,729 ASTEROID TOWARD EARTH. 228 00:08:33,796 --> 00:08:34,830 >> NO, NOPE. 229 00:08:34,897 --> 00:08:36,532 ALL IT WILL DO IS JUST CHANGE 230 00:08:36,599 --> 00:08:40,836 THE SPEED OF THE ORBIT OF 231 00:08:40,903 --> 00:08:46,142 SLIGHTLY CHANGE THE PERIOD AND 232 00:08:46,209 --> 00:08:47,944 ORBIT AROUND THE ASTEROID SYSTEM 233 00:08:48,010 --> 00:08:49,045 AND IT WILL BE WITH IN THE SAME 234 00:08:49,111 --> 00:08:51,847 ORBIT AROUND THE SUN AND WE 235 00:08:51,914 --> 00:08:53,249 COULD NOT CHANGE IT IN A WAY 236 00:08:53,316 --> 00:08:54,550 THAT WOULD MAKE IT THREATENING 237 00:08:54,617 --> 00:08:56,652 EVEN IF WE WANTED TO AND SO THEN 238 00:08:56,719 --> 00:08:59,455 AGAIN, THIS IS A PERFECT KIND 239 00:08:59,522 --> 00:09:01,757 OF LABORATORY SETTING AND A 240 00:09:01,824 --> 00:09:03,459 PERFECT WAY TO BE ABLE TO DO 241 00:09:03,526 --> 00:09:05,595 THIS TEST BECAUSE THERE IS NO 242 00:09:05,661 --> 00:09:11,500 THREAT THERE. 243 00:09:11,567 --> 00:09:15,204 >> SO MANY LANE ON TWITTER ASKS 244 00:09:15,271 --> 00:09:16,806 HAVE YOU HAD THE IDEA TO SLOW 245 00:09:16,872 --> 00:09:19,208 DOWN THE ASTEROID INSTEAD OF AL 246 00:09:19,275 --> 00:09:21,811 THING TRAJECTORY. 247 00:09:21,877 --> 00:09:22,712 THAT IS TRENDING BECAUSE YOU 248 00:09:22,778 --> 00:09:24,614 KNOW, AGAIN, TRYING TO CHANGE 249 00:09:24,680 --> 00:09:27,216 THE SPEED OF SOMETHING IN SPACE 250 00:09:27,283 --> 00:09:29,318 THAT TAKES A LOT OF ENERGY. 251 00:09:29,385 --> 00:09:30,519 YOU DON'T HAVE TO. 252 00:09:30,586 --> 00:09:32,922 WON A BE POSSIBLE TO JUST STOP 253 00:09:32,989 --> 00:09:34,423 ALL TOGETHER AND OR HAVE IT GO 254 00:09:34,490 --> 00:09:36,325 THE OTHER DIRECTION AROUND THE 255 00:09:36,392 --> 00:09:37,426 SUN AND EVERYTHING IS MOVING 256 00:09:37,493 --> 00:09:39,228 VERY, VERY FAST IN SPACE AROUND 257 00:09:39,295 --> 00:09:41,731 THE SUN AND THEN, BUT, ABOUT IT 258 00:09:41,797 --> 00:09:43,132 DOESN'T ARE MATTER. 259 00:09:43,199 --> 00:09:44,133 ALL THAT MATTERS THAT IS 260 00:09:44,200 --> 00:09:48,137 RELATIVE MOTION BETWEEN AN 261 00:09:48,204 --> 00:09:49,639 ASTEROID THAT COULD PIECE THREAT 262 00:09:49,705 --> 00:09:51,240 EARTH AND THE EARTH ITSELF SO 263 00:09:51,307 --> 00:09:53,042 ALL WOULD YOU NEED DO IS REFLECT 264 00:09:53,109 --> 00:09:55,544 IT ENOUGH SO IT DOESN'T HIT AND 265 00:09:55,611 --> 00:09:56,646 DON'T HAVE TO WORRY ABOUT 266 00:09:56,712 --> 00:09:57,947 STOPPING THE MOTION ALL TOGETHER 267 00:09:58,014 --> 00:09:59,548 OR CHANGING IT A LARGE AMOUNT 268 00:09:59,615 --> 00:10:01,350 AND HEAD TOED TO DO IT THE 269 00:10:01,417 --> 00:10:02,351 AMOUNT THAT YOU NEED SO IT 270 00:10:02,418 --> 00:10:04,353 DOESN'T HILT THE EARTH AND THEN, 271 00:10:04,420 --> 00:10:06,155 THEN, THEN AND SO THAT IS 272 00:10:06,222 --> 00:10:10,760 IMPORTANT BECAUSE THE MORE 273 00:10:10,826 --> 00:10:12,261 ENERGY INVOLVED IN CHANGING THE 274 00:10:12,328 --> 00:10:14,964 ORBIT WHERE IS A LARGER LAUNCH 275 00:10:15,031 --> 00:10:16,465 VEHICLE AND LARGER SPACECRAFT 276 00:10:16,532 --> 00:10:18,668 AND MAY NOT BE POSSIBLE TO DO A 277 00:10:18,734 --> 00:10:23,272 LARGE CHANGE BUT ALL WE NEED IS 278 00:10:23,339 --> 00:10:24,974 WHATEVER CHANGE MAY BE NEEDED. 279 00:10:25,041 --> 00:10:26,876 WE HEAD TO DEFLECT IT ENOUGH. 280 00:10:26,942 --> 00:10:28,778 IN THE FUTURE, IT DOESN'T FIND 281 00:10:28,844 --> 00:10:30,479 ITSELF IN THE SAME PLACE AS THE 282 00:10:30,546 --> 00:10:31,580 EARTH. 283 00:10:31,647 --> 00:10:33,783 >> THEN I BEGIN THAT IS WHY 284 00:10:33,849 --> 00:10:35,484 IMPORTANT TO FIND THEM EARLY, 285 00:10:35,551 --> 00:10:35,785 RIGHT? 286 00:10:35,851 --> 00:10:37,286 THE FURTHER AWAY IT IS FROM US 287 00:10:37,353 --> 00:10:39,088 AND THE SMALLER IMPACT WOULD BE 288 00:10:39,155 --> 00:10:39,889 NEEDED. 289 00:10:39,955 --> 00:10:40,156 >> RIGHT. 290 00:10:40,222 --> 00:10:40,589 RIGHT. 291 00:10:40,656 --> 00:10:42,491 THAT IS WHY NASA FUNDS SURVEY 292 00:10:42,558 --> 00:10:48,597 TELESCOPES TO THE OPERATE EVERY 293 00:10:48,664 --> 00:10:50,199 NIGHT TO SURVEY THE SKY AND LOOK 294 00:10:50,266 --> 00:10:51,901 FOR MOVING OBJECTS AGAINST THE 295 00:10:51,967 --> 00:10:53,302 SKIES AND DETERMINING THESE ARE 296 00:10:53,369 --> 00:10:56,005 NEW DISCOVERIES OR OK, WELL, 297 00:10:56,072 --> 00:10:56,706 HERE IS ONE. 298 00:10:56,772 --> 00:10:58,107 WE ARE SEEING IT AGAIN FROM A 299 00:10:58,174 --> 00:10:59,608 FEW YEARS AGO BUILDING UP THE 300 00:10:59,675 --> 00:11:01,210 CATALOG AND CALCULATING THE 301 00:11:01,277 --> 00:11:02,411 ORBITS SO WE KNOW WHERE THEY ARE 302 00:11:02,478 --> 00:11:04,447 IN THE FUTURE AND THEN YOU KNOW, 303 00:11:04,513 --> 00:11:06,048 ALL THE ASTEROIDS OUT IN THE 304 00:11:06,115 --> 00:11:07,450 ASTEROID BUT THE ONES THAT COME 305 00:11:07,516 --> 00:11:08,851 TO EARTH'S NEIGHBORHOOD WE WANT 306 00:11:08,918 --> 00:11:11,654 TO KEEP AN EYE ON THE NICE THING 307 00:11:11,721 --> 00:11:14,657 IS MANY NEAR EARTH NEVER COME TO 308 00:11:14,724 --> 00:11:17,259 EARTH'S VICINITY AND BUT THERE 309 00:11:17,326 --> 00:11:19,862 IS A CLASS OF NEAR EARTH 310 00:11:19,929 --> 00:11:21,764 ASTEROIDS THAT COME TO THE SOLAR 311 00:11:21,831 --> 00:11:22,565 SYSTEM THAT COME CLOSE TO 312 00:11:22,631 --> 00:11:24,967 EARTH'S ORBIT SO KEEP AN EYE ON 313 00:11:25,034 --> 00:11:33,275 THOSE AND THEN, ALSO, TO 314 00:11:33,342 --> 00:11:35,277 DISCOVER THE KNOWN ASTEROID OF 315 00:11:35,344 --> 00:11:37,179 IMPACT TO EARTH THAT COULD CAUSE 316 00:11:37,246 --> 00:11:38,781 DAMAGE THAT WE WANT TOP WORRY 317 00:11:38,848 --> 00:11:40,883 ABOUT SENDING A SPACECRAFT OUT 318 00:11:40,950 --> 00:11:42,585 WHICH IS FABULOUS BUT WITH WE 319 00:11:42,651 --> 00:11:43,786 WANT TO MAKE SURE WE CONTINUE TO 320 00:11:43,853 --> 00:11:45,788 SURVEY FOR ASTEROIDS AND THEN WE 321 00:11:45,855 --> 00:11:47,690 UTILIZING 3:00 TELESCOPES ON THE 322 00:11:47,757 --> 00:11:51,994 GROUND AND THEN, THEN, UTILIZING 323 00:11:52,061 --> 00:11:54,797 TELESCOPE FOR SPACE USE THAT IS 324 00:11:54,864 --> 00:11:56,799 BEING DEVELOPED CALL THE NEAR 325 00:11:56,866 --> 00:11:59,802 EARTH OBJECT SURVEYOR AND TRYING 326 00:11:59,869 --> 00:12:02,204 TO RUNNING THE CAPABILITIES TO 327 00:12:02,271 --> 00:12:04,039 CONTINUE TO FILL OUT THE CATALOG 328 00:12:04,106 --> 00:12:04,940 SO WE KNOW. 329 00:12:05,007 --> 00:12:07,143 DO WE NEED SOMETHING LIKE A 330 00:12:07,209 --> 00:12:08,444 MISSION LIKE DART OR OTHER 331 00:12:08,511 --> 00:12:10,146 DEFLECTION TECHNIQUE THEN AGAIN, 332 00:12:10,212 --> 00:12:11,447 YOU WANT TO DO THAT. 333 00:12:11,514 --> 00:12:13,849 THERE IS SOMETHING THAT POSES 334 00:12:13,916 --> 00:12:15,551 FUTURE IMPACT THREAT YOU WANT TO 335 00:12:15,618 --> 00:12:17,653 KNOW YEARS OR DID HE DECADES IN 336 00:12:17,720 --> 00:12:19,755 ADVANCE YOU DON'T WANT HAVE TO 337 00:12:19,822 --> 00:12:21,357 DEFLECT IT VERY MUCH AND USE 338 00:12:21,424 --> 00:12:30,566 THESE MORE TECHNIQUE AND YOU 339 00:12:30,633 --> 00:12:32,968 HAVE THAT TIME AND AHEAD OF TIME 340 00:12:33,035 --> 00:12:35,371 TO WORK IT. 341 00:12:35,438 --> 00:12:36,872 >> ABSOLUTELY. 342 00:12:36,939 --> 00:12:39,675 SO MATH THIS YOU ON TWITTER ASKS 343 00:12:39,742 --> 00:12:40,976 WHAT EXPERIMENTS WERE DEN ON 344 00:12:41,043 --> 00:12:44,180 EARTH TO SIMULATE THE IMPACT ON 345 00:12:44,246 --> 00:12:47,783 DIE MORE SIS. 346 00:12:47,850 --> 00:12:48,484 >> WELL THERE ARE RESEARCHERS 347 00:12:48,551 --> 00:12:50,586 WHO WORK IN LABORATORY SETTINGS 348 00:12:50,653 --> 00:12:53,989 WHO ACTUALLY IMPACTS WITH 349 00:12:54,056 --> 00:12:55,591 BOULDERS THEY DO STUDY ON 350 00:12:55,658 --> 00:12:57,893 METEORITE MATERIALS. 351 00:12:57,960 --> 00:13:00,296 THEY TAKE THINGS THAT STIMULATE 352 00:13:00,362 --> 00:13:03,098 ASTEROIDS AND DO IMPACTS IN THE 353 00:13:03,165 --> 00:13:05,434 LAB, AND SO THAT TELLS SO MUCH, 354 00:13:05,501 --> 00:13:06,936 BUT TO ACTUALLY DO WITH IT THE 355 00:13:07,002 --> 00:13:08,137 REALS A VOID, IT IS IMPORTANT TO 356 00:13:08,204 --> 00:13:09,238 UNDERSTAND WHAT ARE THE 357 00:13:09,305 --> 00:13:11,841 PROPERTIES AND WHAT ARE EXTRA 358 00:13:11,907 --> 00:13:14,343 FACTORS THERE AND WE KNOW 359 00:13:14,410 --> 00:13:16,145 PHYSICS WITH PERFECT OBJECTS BUT 360 00:13:16,212 --> 00:13:30,860 TO HAVE AND AN OBJECT LIKE YOU 361 00:13:30,926 --> 00:13:32,161 SEND IT IN THE OTHER DIRECTION 362 00:13:32,228 --> 00:13:33,662 AND UNDERSTAND THOSE PROPERTIES 363 00:13:33,729 --> 00:13:34,964 JUST NOT THE EM PACT BUT WHAT 364 00:13:35,030 --> 00:13:37,566 HAPPENS AFTERWARD AND HOW THAT 365 00:13:37,633 --> 00:13:39,768 ADDS UP SO THAT THAT COULD BE 366 00:13:39,835 --> 00:13:41,370 UNDERSTOOD THEN A LOT OF THAT 367 00:13:41,437 --> 00:13:43,472 HAPPENS IN THE LAB AND IN THE 368 00:13:43,539 --> 00:13:45,474 MODELING COMMUNITY DOING 369 00:13:45,541 --> 00:13:47,176 CALCULATES AND THIS WILL BE A 370 00:13:47,243 --> 00:13:53,582 GOOD TEST OF ALL OF THAT. 371 00:13:53,649 --> 00:13:55,184 A GOOD SEGUE TO THE NEXT 372 00:13:55,251 --> 00:13:57,186 QUESTION AND YOUTUBER ASKED THE 373 00:13:57,253 --> 00:13:59,288 ORBITAL DEBRIS AFTER THE 374 00:13:59,355 --> 00:14:00,389 COLLISION AND THE DANGER AND 375 00:14:00,456 --> 00:14:01,991 SATELLITES SOONER OR LATER. 376 00:14:02,057 --> 00:14:04,026 WELL, THIS IS SO FAR AWAY, THAT 377 00:14:04,093 --> 00:14:05,728 I KNOW, THIS DOES NOT POSE A 378 00:14:05,794 --> 00:14:08,631 DANGER TO SATELLITES ON EARTH OR 379 00:14:08,697 --> 00:14:15,938 TO ANYWAY. 380 00:14:16,005 --> 00:14:17,740 THAT IS NOT A PROBLEM AT ALL. 381 00:14:17,806 --> 00:14:20,042 IF ANYTHING, THAT IS MORE WE 382 00:14:20,109 --> 00:14:22,444 HAVE METER SHOWERS EVERY YEAR 383 00:14:22,511 --> 00:14:23,546 WHEN THE EARTH COMINGS AROUND 384 00:14:23,612 --> 00:14:26,348 THE SUN AND GOES THROUGH A 385 00:14:26,415 --> 00:14:28,851 COMMENT'S AND WE HAVE OCCASIONAL 386 00:14:28,918 --> 00:14:31,854 METEOROID A THAT ENTERS THE 387 00:14:31,921 --> 00:14:34,256 ATMOSPHERE SEE A NICE FIREBALL. 388 00:14:34,323 --> 00:14:36,258 THIS IS NOT GOING TO ADD TO ANY 389 00:14:36,325 --> 00:14:41,764 OF THAT. 390 00:14:41,830 --> 00:14:44,266 SIMON TAILOR ASKS WHAT THE 391 00:14:44,333 --> 00:14:45,568 CHANCE OF MEETING THE 392 00:14:45,634 --> 00:14:46,969 POSSIBILITY OF HAVING A LIFE 393 00:14:47,036 --> 00:14:47,870 THREAT CONTINUING ASTEROID 394 00:14:47,937 --> 00:14:49,171 STRIKE IN THE NEAR FUTURE. 395 00:14:49,238 --> 00:14:51,373 >> WELL, THE NICE THING IS, THIS 396 00:14:51,440 --> 00:14:54,577 IS A VERY RARE'S VENT AND 397 00:14:54,643 --> 00:14:55,377 HOPEFULLY WE'LL EVERYBODY IN 398 00:14:55,444 --> 00:14:57,079 HAVE TO DEAL WITH THIS IN OUR 399 00:14:57,146 --> 00:14:58,080 LIFETIME IN OUR CHILDREN'S 400 00:14:58,147 --> 00:15:00,282 LIFETIME AND GRAND CHILDREN'S 401 00:15:00,349 --> 00:15:07,623 LIFETIMES AND BUT BETWEEN THE 402 00:15:07,690 --> 00:15:08,924 SEARCH AND SOMETHING LIKE 403 00:15:08,991 --> 00:15:11,727 ASTEROID COULD CAUSE LIKE 404 00:15:11,794 --> 00:15:13,028 REGIONAL DAMAGE ON THE EARTH YOU 405 00:15:13,095 --> 00:15:15,331 KNOW, IT MAY BE A ONCE IN A 406 00:15:15,397 --> 00:15:17,533 MILLENNIUM TYPE EVENT OR EVEN 407 00:15:17,600 --> 00:15:20,536 SOMETHING LIKE THE EVENTS IMPACT 408 00:15:20,603 --> 00:15:25,140 OVER RUSSIA IN 2013 WHERE A 409 00:15:25,207 --> 00:15:27,042 STRONG ASTEROID DISRUPTED IN THE 410 00:15:27,109 --> 00:15:28,544 ATMOSPHERE AND SHOCK WAVE AND 411 00:15:28,611 --> 00:15:30,245 STILL DID DAMAGE ON THE GROUND 412 00:15:30,312 --> 00:15:31,747 AND THEN SO THAT WAS THE MOST 413 00:15:31,814 --> 00:15:33,349 SERIOUS THING WE HAVE SEEN AND 414 00:15:33,415 --> 00:15:35,351 MAYBE LIKE, MAYBE A ONCE A 415 00:15:35,417 --> 00:15:37,553 CENTURY EVENT SO IT IS SO RARE 416 00:15:37,620 --> 00:15:38,854 AND WE HOPEFULLY WILL NEVER DEAL 417 00:15:38,921 --> 00:15:40,756 WELL THIS IN OUR LIFETIMES BUT, 418 00:15:40,823 --> 00:15:42,558 THEN AGAIN, WE STILL WOULD WANT 419 00:15:42,625 --> 00:15:45,961 TO LOOK JUST SO WE KNOW AND SO 420 00:15:46,028 --> 00:15:48,364 CONTINUE SURVEYING THE SKIES AND 421 00:15:48,430 --> 00:15:51,367 CATALOGS THE OBJECTS AND JUST SO 422 00:15:51,433 --> 00:15:53,268 THERE IS NO SURPRISE AND SO 423 00:15:53,335 --> 00:15:56,171 THAT, SO THAT SHALL I KNOW, WE, 424 00:15:56,238 --> 00:15:58,474 WE MIGHT KNOW STATISTICS TO BE 425 00:15:58,540 --> 00:16:01,377 ABLE TO INNER FROM THE RECORD 426 00:16:01,443 --> 00:16:03,712 BUT WE STILL, WE STILL NEED TO 427 00:16:03,779 --> 00:16:07,616 LOOK JUST TO KNOW. 428 00:16:07,683 --> 00:16:09,118 >> WE NEED KNEE IS THROUGHOUT 429 00:16:09,184 --> 00:16:10,419 BEFORE YOU CAN MITIGATE 430 00:16:10,486 --> 00:16:11,020 ANYTHING. 431 00:16:11,086 --> 00:16:13,522 SO MICHAEL, KILGORE ON FACEBOOK 432 00:16:13,589 --> 00:16:16,125 ASKS IF DART IS SUCCESSFUL WOULD 433 00:16:16,191 --> 00:16:18,827 IT HELP ENABLE NASA TO DEFLECT 434 00:16:18,894 --> 00:16:19,928 LARGER ASTEROIDS? 435 00:16:19,995 --> 00:16:21,130 F. SO WHAT IS THE LARGEST 436 00:16:21,196 --> 00:16:22,131 ASTEROIDS THAT COULD BE 437 00:16:22,197 --> 00:16:23,732 REDIRECTED. 438 00:16:23,799 --> 00:16:24,933 >> WHERE WILL SHALL I AM NOT 439 00:16:25,000 --> 00:16:27,136 SURE OF THAT ANSWER OFF HANDING 440 00:16:27,202 --> 00:16:29,538 BUT CERTAINLY, AND IN THE SIZE 441 00:16:29,605 --> 00:16:33,942 REGIME, WELL, THE SATELLITE THAT 442 00:16:34,009 --> 00:16:36,545 IS GOING TO BE IMPACTED IS ABOUT 443 00:16:36,612 --> 00:16:39,548 160METERS IN SIZE, AND THAT 444 00:16:39,615 --> 00:16:41,350 KIND OF REPRESENTS THE SORT OF 445 00:16:41,417 --> 00:16:44,453 THE SIZE RANGE THAT AND LARGER 446 00:16:44,520 --> 00:16:47,356 WITH WHICH CONGRESS HAS TASKED 447 00:16:47,423 --> 00:16:48,857 NASA WITH, YOU KNOW, FINDING 448 00:16:48,924 --> 00:16:51,360 THESE ASTEROIDS BECAUSE THESE 449 00:16:51,427 --> 00:16:52,861 COULD POSE REGIONAL DAMAGE 450 00:16:52,928 --> 00:16:56,465 THREAT TO THE EARTH SHOULD ONE 451 00:16:56,532 --> 00:16:58,267 IMPACT SO THE NICE THING THAT IS 452 00:16:58,333 --> 00:17:01,170 FOR THAT SIZE, A TECHNIQUE LIKE 453 00:17:01,236 --> 00:17:04,206 DART, YOU KNOW, COULD BE WHICH 454 00:17:04,273 --> 00:17:06,108 IS WHY THIS IS BEING TESTED IF 455 00:17:06,175 --> 00:17:07,409 THERE WERE, IF THERE WERE 456 00:17:07,476 --> 00:17:10,212 ASTEROIDS THAT WERE MUCH LARGER 457 00:17:10,279 --> 00:17:11,613 AND SOMETHING THAT SUPPOSED 458 00:17:11,680 --> 00:17:13,615 IMPACT THAT WAS MUCH LARGER AND 459 00:17:13,682 --> 00:17:15,317 PHYSICIAN THERE WAS, FAR LESS 460 00:17:15,384 --> 00:17:17,319 NOTICE, SO IT WAS NOT POSSIBLE 461 00:17:17,386 --> 00:17:19,722 TO DIVERT WITH IT THE KINETIC 462 00:17:19,788 --> 00:17:21,123 IMPACT OR TECHNIQUE THERE ARE 463 00:17:21,190 --> 00:17:22,424 OTHER TECHNIQUES THAT COULD BE 464 00:17:22,491 --> 00:17:25,728 UTILIZED AND, AND, IN THE CASE 465 00:17:25,794 --> 00:17:27,429 AND THERE WAS A LOT OF WARNING 466 00:17:27,496 --> 00:17:29,331 AND SOME OTHER TECHNIQUES LIKE 467 00:17:29,398 --> 00:17:32,534 GRAVITY TRACTOR JUST USING 468 00:17:32,601 --> 00:17:34,636 GRAVITY AND NATURE AND HAVING A 469 00:17:34,703 --> 00:17:36,638 SPACECRAFT SITTING NEXT TO 470 00:17:36,705 --> 00:17:37,840 ASTEROID AND LETTING THE 471 00:17:37,906 --> 00:17:39,641 SPACECRAFT TUG ON THE ASTEROID 472 00:17:39,708 --> 00:17:40,743 WITH THE NATURAL FORCE OF 473 00:17:40,809 --> 00:17:42,444 GRAVITY OR ENHANCING IT BY 474 00:17:42,511 --> 00:17:44,346 PICKING UP A BOULDER OR WHAT 475 00:17:44,413 --> 00:17:46,648 HAVE YOU, THEN, THAT IS ANOTHER, 476 00:17:46,715 --> 00:17:47,750 THAT IS ANOTHER TECHNIQUE COULD 477 00:17:47,816 --> 00:17:49,752 BE USED WITH LONG NOTICE AND 478 00:17:49,818 --> 00:17:50,853 THERE IS ALSO, THERE IS ALSO, 479 00:17:50,919 --> 00:17:52,554 YOU KNOW, YOU SEE IT IN THE 480 00:17:52,621 --> 00:17:54,456 MOVIES BUT NEVER QUITE THE RIGHT 481 00:17:54,523 --> 00:17:55,958 WAY, FOR INSTANCE, NUCLEAR 482 00:17:56,024 --> 00:17:57,760 DEFLECTION IS USED, BUT THAT 483 00:17:57,826 --> 00:18:00,162 REALLY, THE GOAL WOULD NOT BE TO 484 00:18:00,229 --> 00:18:02,564 BLOW SOMETHING UP AGAIN IT US 485 00:18:02,631 --> 00:18:05,000 ABOUT DEFLECTION, JUST, JUST 486 00:18:05,067 --> 00:18:06,401 NUDGING IT OF THE PATH AND 487 00:18:06,468 --> 00:18:07,603 SOMETHING THAT IS VERY LARGE, 488 00:18:07,669 --> 00:18:09,204 THEN IT WOULD BE POSSIBLE TO 489 00:18:09,271 --> 00:18:11,907 USING DEVICE TO DO DEFLECTION 490 00:18:11,974 --> 00:18:13,308 AND SO, SOB THERE ARE OTHER 491 00:18:13,375 --> 00:18:15,010 TECHNIQUES THAT COULD BE USED 492 00:18:15,077 --> 00:18:16,812 BUT THE KINETIC IMPACT OR 493 00:18:16,879 --> 00:18:19,615 TECHNIQUE CAN BE USED WITH THE 494 00:18:19,681 --> 00:18:21,917 ASTEROIDS THAT FOR THAT SMALLER 495 00:18:21,984 --> 00:18:24,419 RANGE AND THEN ACTUALLY FAR MORE 496 00:18:24,486 --> 00:18:26,421 SO THE ODDS ARE, THAT IF 497 00:18:26,488 --> 00:18:27,923 SOMETHING EVER DOES POSE IMPACT 498 00:18:27,990 --> 00:18:29,725 THREAT, IT WOULD PROBABLY BE IN 499 00:18:29,792 --> 00:18:31,727 THAT SIZE RANGE SO IT IS NICE TO 500 00:18:31,794 --> 00:18:34,129 TEST THIS TECHNIQUE BUT THEN 501 00:18:34,196 --> 00:18:35,130 CONTINUE MODELING WITH THE OTHER 502 00:18:35,197 --> 00:18:37,232 TECHNIQUES SO IF THEY ARE 503 00:18:37,299 --> 00:18:38,534 REQUIRED FOR LARGER SIZE, YOU 504 00:18:38,600 --> 00:18:40,035 KNOW, THAT IS SOMETHING THAT HAS 505 00:18:40,102 --> 00:18:42,938 BEEN STUDIED, SO, AGAIN, THERE 506 00:18:43,005 --> 00:18:44,339 IS NO, THERE IS NO ONE SOLUTION 507 00:18:44,406 --> 00:18:46,141 BUT YOU TRY TO DO STUDY IN ALL 508 00:18:46,208 --> 00:18:47,643 AREAS SO YOU ARE PREPARING TO 509 00:18:47,709 --> 00:18:53,749 HAVE A NICE TOOLBOX TO WORK. 510 00:18:53,816 --> 00:18:56,552 FOES THOSE TUNING IN REFRESH TO 511 00:18:56,618 --> 00:18:58,053 WRITE IN THE COMMENT BOX OF 512 00:18:58,120 --> 00:18:59,454 WHEREVER ARE WATCHING TODAY. 513 00:18:59,521 --> 00:19:01,757 SO KELLY, ROBERT NOWLAND ON 514 00:19:01,824 --> 00:19:04,193 FACEBOOK ASKS BEFORE THE PROCESS 515 00:19:04,259 --> 00:19:05,494 GUESS DOWN, DO YOU BELIEVE IT 516 00:19:05,561 --> 00:19:07,896 WILL MOVE THE ASTEROIDS 517 00:19:07,963 --> 00:19:09,097 SIGNIFICANTLY. 518 00:19:09,164 --> 00:19:09,898 >> WELL, NO. 519 00:19:09,965 --> 00:19:11,800 IN FACT WE REALLY COULD NOT. 520 00:19:11,867 --> 00:19:13,502 AS SAW IN THE ANIMATION, SO YOU 521 00:19:13,569 --> 00:19:15,604 KNOW THE DARK SPACECRAFT THAT IS 522 00:19:15,671 --> 00:19:17,906 FAR SMALLER THAN THIS LITTLE 523 00:19:17,973 --> 00:19:21,109 MOON AND CERTAINLY, A WHOLE LOT 524 00:19:21,176 --> 00:19:22,911 SMALLER. 525 00:19:22,978 --> 00:19:25,514 AND THE GOAL IS NOT TO MOVE IT 526 00:19:25,581 --> 00:19:27,416 SIGNIFICANTLY, IT IS JUST TO 527 00:19:27,482 --> 00:19:29,117 TEST DEFLECTION TECHNIQUE TO 528 00:19:29,184 --> 00:19:30,419 CHANGE THE PERIOD OF THE ORBIT 529 00:19:30,485 --> 00:19:34,223 THAT IMPACT AND BECAUSE AGAIN 530 00:19:34,289 --> 00:19:35,724 THAT WOULD BE NEEDED IN THE 531 00:19:35,791 --> 00:19:37,526 EVENT OF ACTUAL IMPACT THREAT TO 532 00:19:37,593 --> 00:19:39,127 BE ABLE TO DIVERT IT A SMALL 533 00:19:39,194 --> 00:19:41,930 AMOUNT AND SO, SO AS YOU CAN SEE 534 00:19:41,997 --> 00:19:42,130 HERE. 535 00:19:42,197 --> 00:19:43,732 KNOW, THE SIZE DIFFERENCE IS 536 00:19:43,799 --> 00:19:46,535 PRETTY LARGE, AND SO, THE CHANGE 537 00:19:46,602 --> 00:19:48,136 IN THE SPEED OF THE ORBIT IS 538 00:19:48,203 --> 00:19:49,638 ALSO GOING TO BE SMALL OF THE 539 00:19:49,705 --> 00:19:53,342 ORBIT AROUND BUT AGAIN THAT IS 540 00:19:53,408 --> 00:19:55,444 ALL NEEDED AND WE DON'T NEED TO 541 00:19:55,510 --> 00:19:59,047 DO A LARGE DEFLECTION. 542 00:19:59,114 --> 00:20:03,252 AND TO BE ABLE TO GET THE DATA 543 00:20:03,318 --> 00:20:04,753 ON WHAT COMES OUT OF THE FIRST 544 00:20:04,820 --> 00:20:09,958 EVER PLANETARY DEFENSE TEST AND 545 00:20:10,025 --> 00:20:12,160 REALLY VALUABLE AND THEN USEFUL 546 00:20:12,227 --> 00:20:13,562 FOR MODELING OTHER CASES WHERE 547 00:20:13,629 --> 00:20:14,863 MAYBE SOMETHING LARGER IS NEEDED 548 00:20:14,930 --> 00:20:16,965 BUT, THEN, IT IS NOT A LARGE 549 00:20:17,032 --> 00:20:17,666 DEFLECTION HERE. 550 00:20:17,733 --> 00:20:19,167 BUT CERTAINLY, A SIGNIFICANT ONE 551 00:20:19,234 --> 00:20:20,469 THAT COULD MEASURED FROM EARTH, 552 00:20:20,535 --> 00:20:24,473 THAT IS THE PLAN HERE AND FOLKS 553 00:20:24,539 --> 00:20:26,174 ARE GEARING UP FOR THAT TO BE 554 00:20:26,241 --> 00:20:33,382 READY TO WATCH THAT. 555 00:20:33,448 --> 00:20:34,983 >> DOTS THE SPACECRAFT HAVE A 556 00:20:35,050 --> 00:20:36,385 CRAM TO RECORD THE IMPACT? 557 00:20:36,451 --> 00:20:38,186 WELL, IT HASES A CAMERA, 558 00:20:38,253 --> 00:20:41,189 ACTUALLY, TO GUIDE THE 559 00:20:41,256 --> 00:20:43,792 TRAJECTORY SO A SIMPLE 560 00:20:43,859 --> 00:20:45,594 SPACECRAFT AND WHAT IT NEEDS TO 561 00:20:45,661 --> 00:20:47,596 BE SOLAR PANELS TO GENERATE 562 00:20:47,663 --> 00:20:49,097 ELECTRICITY AND THE OTHER 563 00:20:49,164 --> 00:20:53,502 INSTRUMENTS NEEDED FOR IT TO 564 00:20:53,568 --> 00:20:58,807 NAVIGATE. 565 00:20:58,874 --> 00:21:01,910 IT IS DOES AUTONOMOUSLY AND 566 00:21:01,977 --> 00:21:03,712 IMPACT AND COMPUTER WORK THAT IS 567 00:21:03,779 --> 00:21:06,548 DONE TO MAKE SURE IT CAN LINE 568 00:21:06,615 --> 00:21:11,853 UP. 569 00:21:11,920 --> 00:21:13,655 AND THE LIGHT DELAY TIME AND SO 570 00:21:13,722 --> 00:21:16,158 IT IS GOING LINE UP ITSELF BASED 571 00:21:16,224 --> 00:21:17,559 ON THAT CAMERA AND SO THAT IS 572 00:21:17,626 --> 00:21:21,063 GOING TO BE ALL FOR TRACKING TO 573 00:21:21,129 --> 00:21:23,265 THE ASTEROID AND THE ITALIAN 574 00:21:23,332 --> 00:21:26,668 SPACE AGENCY HAS CONTRIBUTED A 575 00:21:26,735 --> 00:21:31,073 SMALL SAT THAT IS GOING TO 576 00:21:31,139 --> 00:21:32,374 ACTUALLY TAKE IMAGE OF THE 577 00:21:32,441 --> 00:21:34,576 IMPACT THAT IS GOING TO CONTINUE 578 00:21:34,643 --> 00:21:48,190 TO CAST PAST THE AND LOOK FOR 579 00:21:48,256 --> 00:21:49,691 LONGER PERIOD OF TIME TO 580 00:21:49,758 --> 00:21:50,692 DETERMINE WHAT SORT OF CHANGE 581 00:21:50,759 --> 00:21:53,395 WAS MADE IN THE PERIOD OF THE 582 00:21:53,462 --> 00:21:59,101 ORBIT ABOUT DIDYMOS. 583 00:21:59,167 --> 00:22:01,403 >> SO ORBITAL CLASH ON YOUTUBE 584 00:22:01,470 --> 00:22:03,105 ASK HOW WILL IT IMPROVE THE 585 00:22:03,171 --> 00:22:05,340 ANALYSIS OF THE IMPACT OF THE 586 00:22:05,407 --> 00:22:08,043 DARK SPACECRAFT? 587 00:22:08,110 --> 00:22:08,744 >> CERTAINLY. 588 00:22:08,810 --> 00:22:09,544 JUST GETTING THAT LOOK AT THE 589 00:22:09,611 --> 00:22:11,146 IMPACT YOU KNOW, THAT WOULD BE 590 00:22:11,213 --> 00:22:13,148 VALUABLE AND WHATEVER MAY BE 591 00:22:13,215 --> 00:22:15,050 CAPTURED DURING THAT SHORT 592 00:22:15,117 --> 00:22:17,652 PERIOD OF TIME AND THAT, THAT 593 00:22:17,719 --> 00:22:19,855 THE CUBE WILL BE CONTINUING BY 594 00:22:19,921 --> 00:22:24,359 THE DIDYMOS SYSTEM, SO ANY DEAL 595 00:22:24,426 --> 00:22:27,062 WITH WILL BE VALUABLE FOR SEEING 596 00:22:27,129 --> 00:22:30,465 IF THERE IS MUCH IN THE WAIVE 597 00:22:30,532 --> 00:22:33,869 IMPACTED FROM THE IMPACT AND ANY 598 00:22:33,935 --> 00:22:39,875 MATERIAL COMING OFF OF, SO THAT 599 00:22:39,941 --> 00:22:40,776 WILL BE VALUABLE FOR 600 00:22:40,842 --> 00:22:42,277 UNDERSTANDING WHAT ACTUALLY 601 00:22:42,344 --> 00:22:46,181 HAPPENED AND TURNING THAT INTO 602 00:22:46,248 --> 00:22:47,682 MODELING THAT COULD BE USED TO 603 00:22:47,749 --> 00:22:50,986 UNDERSTAND IN GENERAL HOW CAN 604 00:22:51,053 --> 00:22:51,787 IMPACT ORBITALS AND THE 605 00:22:51,853 --> 00:22:53,088 INTERACTION WITH ASTEROID 606 00:22:53,155 --> 00:22:59,294 MATERIAL HOW THAT WORKS. 607 00:22:59,361 --> 00:23:00,695 DIDYMOS. 608 00:23:00,762 --> 00:23:02,097 DIDYMOS. 609 00:23:02,164 --> 00:23:06,334 DIDYMOS. 610 00:23:06,401 --> 00:23:08,036 >> WELL THAT IS WHERE ASTRONOMER 611 00:23:08,103 --> 00:23:09,137 IN THE GROUND ARE SO IMPORTANT 612 00:23:09,204 --> 00:23:10,338 HERE. 613 00:23:10,405 --> 00:23:13,141 WITH HAVING A LARGE TELESCOPES 614 00:23:13,208 --> 00:23:17,946 LOOKING AT THE DIDYMOS SYSTEM 615 00:23:18,013 --> 00:23:19,247 AND LOOKING AT THE LIGHT COMING 616 00:23:19,314 --> 00:23:20,749 FROM THE SYSTEM WILL BE GOING UP 617 00:23:20,816 --> 00:23:22,250 AND DOWN, UP AND DOWN IN THIS 618 00:23:22,317 --> 00:23:23,852 LIGHT CURVE AS THOSE TWO 619 00:23:23,919 --> 00:23:26,254 ASTEROIDS REVOLVED AROUND EACH 620 00:23:26,321 --> 00:23:30,058 OTHER AND, THE FOLKS USING THE 621 00:23:30,125 --> 00:23:32,060 MODELING HERE CAN KIND OF BACK 622 00:23:32,127 --> 00:23:33,662 OUT FROM THAT AND HOW THE PERIOD 623 00:23:33,728 --> 00:23:37,165 OF THE ORBIT CHANGED AND OTHERS 624 00:23:37,232 --> 00:23:40,569 WHO FROM THE DART TEAM WHO DO 625 00:23:40,635 --> 00:23:44,172 THE MODELING OF WHAT MAY HAPPEN 626 00:23:44,239 --> 00:23:46,875 ONCE IT IMPACTS AND USE ALL OF 627 00:23:46,942 --> 00:23:48,176 THAT INFORMATION AS WELL AS A 628 00:23:48,243 --> 00:23:49,678 PROPERTIES AND THAT ARE KNOWN 629 00:23:49,744 --> 00:23:52,581 ABOUT THE ASTEROID FROM THE 630 00:23:52,647 --> 00:23:54,282 CAMERAS AND THIS WAS MENTIONED 631 00:23:54,349 --> 00:23:56,585 AND FROM OTHER GROUND BASED 632 00:23:56,651 --> 00:23:58,587 OBSERVATIONS AND, AND PUTTING 633 00:23:58,653 --> 00:24:00,288 ALL OF THAT TOGETHER, TO HAVE A 634 00:24:00,355 --> 00:24:02,891 BETTER UNDERSTANDING OF WHAT 635 00:24:02,958 --> 00:24:05,527 HAPPENED AND YES, ALL THE 636 00:24:05,594 --> 00:24:07,829 MODELING STATES THIS WITH BE 637 00:24:07,896 --> 00:24:08,930 SOMETHING MEASURABLE FROM THE 638 00:24:08,997 --> 00:24:11,032 EARTH AND THIS IS A COOL 639 00:24:11,099 --> 00:24:13,735 PARTNERING BETWEEN SPACECRAFT 640 00:24:13,802 --> 00:24:16,538 TEAM AND GROUND BASE ASTRONOMERS 641 00:24:16,605 --> 00:24:18,240 THEN REALLY EXCITING TO SEE HOW 642 00:24:18,306 --> 00:24:45,167 THIS WILL PLAY OUT. 643 00:24:45,233 --> 00:24:45,767 >> WE CAN'T. 644 00:24:45,834 --> 00:24:47,769 A IS WHY IT IS, IT IS A REALLY 645 00:24:47,836 --> 00:24:51,173 GOOD LABORATORY FOR THIS TESTS 646 00:24:51,239 --> 00:24:53,875 TO HAVE THIS BINARY ASTEROID 647 00:24:53,942 --> 00:24:56,478 SYSTEM, COME WITHIN THE DISTANCE 648 00:24:56,545 --> 00:24:57,679 TO EARTH WHERE IT COULD BE 649 00:24:57,746 --> 00:24:59,681 SAFELY OBSERVED FROM THE EARTH 650 00:24:59,748 --> 00:25:01,383 AND DO THIS TEST AT THE SAME 651 00:25:01,449 --> 00:25:03,718 TIME, SO IT IS REALLY ACTUALLY A 652 00:25:03,785 --> 00:25:05,220 UNIQUE OPPORTUNITY THAT MATURE 653 00:25:05,287 --> 00:25:07,022 HAS GIVEN US AND IN A NICE 654 00:25:07,088 --> 00:25:09,624 SETTING WHERE THERE IS NO HAZARD 655 00:25:09,691 --> 00:25:10,525 TO EARTH. 656 00:25:10,592 --> 00:25:12,027 IT IS PERFECT. 657 00:25:12,093 --> 00:25:15,030 >> IT IS GOOD FOR THAT. 658 00:25:15,096 --> 00:25:17,532 IT IS NOT A THREAT TO EARTH. 659 00:25:17,599 --> 00:25:20,235 SO INTERESTING ON YOUTUBE ASKS 660 00:25:20,302 --> 00:25:21,937 YOU COULD TELL US ABOUT DART'S 661 00:25:22,003 --> 00:25:23,438 SOLAR PANEL ARRANGE. 662 00:25:23,505 --> 00:25:25,040 DOES THE OFFSET ARRANGEMENT HELP 663 00:25:25,106 --> 00:25:28,243 IT NAVIGATE BETTER? 664 00:25:28,310 --> 00:25:30,245 >> THAT IS INTERESTING. 665 00:25:30,312 --> 00:25:31,346 I AM NOT SURE HOW TO ANSWER THE 666 00:25:31,413 --> 00:25:31,746 QUESTION. 667 00:25:31,813 --> 00:25:33,748 BUT THESE ARE, THESE ARE, 668 00:25:33,815 --> 00:25:36,952 FASCINATING SOL RAY ARRAYS THE 669 00:25:37,018 --> 00:25:38,353 ROLLOUT SOLAR ARRAYS THAT HAVE 670 00:25:38,420 --> 00:25:40,455 BEEN USED ON THE INTERNATIONAL 671 00:25:40,522 --> 00:25:42,157 SPACE STATION AND SO THIS IS, 672 00:25:42,224 --> 00:25:43,458 THIS IS A NEAT OPPORTUNITY TO 673 00:25:43,525 --> 00:25:46,661 TAKE A TEST OF TECHNOLOGY AND 674 00:25:46,728 --> 00:25:47,963 USE IT NOW ON THE SPACECRAFT 675 00:25:48,029 --> 00:25:51,466 AND, AND, AND 3:00 PI DON'T 676 00:25:51,533 --> 00:25:54,069 THINK THAT THEIR PLACEMENT IS 677 00:25:54,135 --> 00:25:55,971 IMPORTANT AND ACCEPT THEY JUST 678 00:25:56,037 --> 00:25:57,973 NEED NO NOT BE IN THE WAY OF 679 00:25:58,039 --> 00:26:00,675 INSTRUMENTATION ON DART BUT A 680 00:26:00,742 --> 00:26:02,077 NEAT CHANCE TO UTILIZE THIS 681 00:26:02,143 --> 00:26:04,412 TECHNOLOGY HAS BEEN USED ON THE 682 00:26:04,479 --> 00:26:06,815 INTERNATIONAL SPACE STATION. 683 00:26:06,881 --> 00:26:08,316 >> SO KELLY, WE HAVE TIME FOR 684 00:26:08,383 --> 00:26:09,818 JUST ONE MORE QUESTION. 685 00:26:09,884 --> 00:26:11,019 AND I WOULD LIKE TO END WITH 686 00:26:11,086 --> 00:26:12,020 YOUR CAREER. 687 00:26:12,087 --> 00:26:14,422 BECAUSE YOUR CAREER AT NASA 688 00:26:14,489 --> 00:26:16,424 SOUNDS SO INTERESTING AND FOR 689 00:26:16,491 --> 00:26:17,826 ANYONE LISTENING TODAY. 690 00:26:17,892 --> 00:26:20,128 WAS YOUR PATH LIKE IN THE 691 00:26:20,195 --> 00:26:22,130 CURRENT CAREER WHAT ADVICE WOULD 692 00:26:22,197 --> 00:26:23,331 YOU HAVE FOR SOMEONE WANTING TO 693 00:26:23,398 --> 00:26:25,834 PURSUE SINK PLANETARY DEFENSE? 694 00:26:25,900 --> 00:26:27,235 >> WELL, I WAS RESEARCHER 695 00:26:27,302 --> 00:26:29,638 ASTRONOMER AT GODDARD 696 00:26:29,704 --> 00:26:32,641 SPACEFLIGHT CENTER BEFORE A 697 00:26:32,707 --> 00:26:35,543 BECAME A BUREAUCRAT AND NOW IN A 698 00:26:35,610 --> 00:26:38,246 SPECIAL WHERE I CAN SUPPORT 699 00:26:38,313 --> 00:26:40,448 FANTASTIC PEOPLE AND, AND HELP 700 00:26:40,515 --> 00:26:42,651 TO MANAGE A PROGRAM THAT KEEPS 701 00:26:42,717 --> 00:26:44,753 ALL OF THESE EFFORTS GOING 702 00:26:44,819 --> 00:26:46,254 FIGHTING AND FOLLOWING UP AND 703 00:26:46,321 --> 00:26:47,355 CHARACTERIZING THEM AND 704 00:26:47,422 --> 00:26:49,457 CALCULATING ORBIT SO IT IS A 705 00:26:49,524 --> 00:26:50,859 REAL PRIVILEGE TO GET DO THIS 706 00:26:50,925 --> 00:26:52,260 AND WORK WITH SOME FANTASTIC 707 00:26:52,327 --> 00:26:53,461 PEOPLE AND SUPPORT THEM AND 708 00:26:53,528 --> 00:26:55,263 THEN, SO, SO SCIENCE IS A ROOT. 709 00:26:55,330 --> 00:26:57,065 YOU WITH A WAS ASTRONOMER AND 710 00:26:57,132 --> 00:26:58,266 PEOPLE ENGINEERS WHO WERE 711 00:26:58,333 --> 00:27:00,268 INVOLVED ON THE DART MISSION AND 712 00:27:00,335 --> 00:27:01,369 SEE YOU INTERESTS BUT I MUST 713 00:27:01,436 --> 00:27:03,471 SAY, TO WORK IN PLANETARY 714 00:27:03,538 --> 00:27:05,507 DEFENSE AND AT NASA I SAY IT IS 715 00:27:05,573 --> 00:27:07,609 JUST SCIENCE AND ENGINEERS AND 716 00:27:07,676 --> 00:27:09,210 BE IN BIG TRUNNEL AND NEED ALL 717 00:27:09,277 --> 00:27:11,012 KINDS OF PEOPLE SAN BUDGET AND 718 00:27:11,079 --> 00:27:12,414 PUBLIC AFFAIRS PEOPLE AND WE 719 00:27:12,480 --> 00:27:15,016 NEED, WE NEED, L.A. YOU ARE 720 00:27:15,083 --> 00:27:17,419 POLICY PEOPLE AND SO MANY WAYS 721 00:27:17,485 --> 00:27:19,921 TO SUPPORT ANY FIELD AND SO, IT 722 00:27:19,988 --> 00:27:22,223 IS POSSIBLE TO PURSUE YOUR 723 00:27:22,290 --> 00:27:23,525 PASSION AND ALSO BE INVOLVED IN 724 00:27:23,591 --> 00:27:25,527 SOMETHING LIKE PLAN EAT RAILROAD 725 00:27:25,593 --> 00:27:27,228 DEFENSE OR OTHER ACTIVITIES IN 726 00:27:27,295 --> 00:27:29,631 NASA. 727 00:27:29,698 --> 00:27:30,832 >> WELL THANK YOU SO MUCH AGAIN 728 00:27:30,899 --> 00:27:32,434 FOR JOINING US AGAIN TODAY AND 729 00:27:32,500 --> 00:27:33,535 EVERYTHING YOU DO. 730 00:27:33,601 --> 00:27:34,536 IT HAS BEEN A PLEASURE. 731 00:27:34,602 --> 00:27:37,038 A THANK YOU, JOSH, FOR ALL YOU 732 00:27:37,105 --> 00:27:37,739 DO, TOO. 733 00:27:37,806 --> 00:27:39,341 THANK ALL FOR WATCHING AT HOME. 734 00:27:39,407 --> 00:27:41,142 YOU CAN COOP UP WITH THE MISSION 735 00:27:41,209 --> 00:27:43,345 ON SOCIAL MEDIA BY USING THE 736 00:27:43,411 --> 00:27:44,846 HASHTAG DART MISSION AND YOU CAN 737 00:27:44,913 --> 00:27:47,449 ALSO FOLLOW NASA'S SOLAR SYSTEM 738 00:27:47,515 --> 00:27:48,750 ON TWITTER, FACEBOOK AND 739 00:27:48,817 --> 00:27:49,451 INSTAGRAM. 740 00:27:49,517 --> 00:27:51,453 YOU CAN KEEP UP WITH NASA'S 741 00:27:51,519 --> 00:27:53,254 PLANETARY DEFENSE COORDINATION 742 00:27:53,321 --> 00:27:54,956 OFFICE AND AS STROYED RELATED 743 00:27:55,023 --> 00:27:56,958 EFFORTS ON TWITTER FOLLOWING AND 744 00:27:57,025 --> 00:27:58,860 FOR THE LATEST NEWS ON DART 745 00:27:58,927 --> 00:28:04,099 VISIT WWW.NASA.GOV/DART 746 00:28:04,099 --> 00:28:05,350 MAKE SURE TO YOU WATCH THE DART 747 00:28:05,350 --> 00:28:06,885 LAUNCH CURRENT SCHEDULE FOR 748 00:28:06,885 --> 00:28:08,203 NOVEMBER 24th AT 1:20A.M. 749 00:28:08,269 --> 00:28:09,838 EASTERN TIME. 750 00:28:09,838 --> 00:28:12,340 THANKS SO MUCH AGAIN. 751 00:28:12,340 --> 00:28:14,726 KEEP LOOK UP.