1 00:00:17,269 --> 00:00:14,549 was this mission a hundred percent 2 00:00:19,590 --> 00:00:17,279 successful in terms of the science 3 00:00:21,670 --> 00:00:19,600 i would have to say no it was a thousand 4 00:00:23,750 --> 00:00:21,680 percent successful 5 00:00:25,830 --> 00:00:23,760 we achieved all of our science 6 00:00:28,390 --> 00:00:25,840 objectives 7 00:00:30,470 --> 00:00:28,400 we do in fact have a comparison of the 8 00:00:32,470 --> 00:00:30,480 deep impact area 9 00:00:35,430 --> 00:00:32,480 and it in fact does show an impact 10 00:00:38,069 --> 00:00:35,440 crater it's about 150 meters across and 11 00:00:40,310 --> 00:00:38,079 has a small central mound in the center 12 00:00:42,229 --> 00:00:40,320 it looks as if from the impact the stuff 13 00:00:43,670 --> 00:00:42,239 went up and came back down 14 00:00:46,549 --> 00:00:43,680 you can barely see this but there's a 15 00:00:48,389 --> 00:00:46,559 little lit area on that side and a dark 16 00:00:50,549 --> 00:00:48,399 area on the other and that's the central 17 00:00:51,590 --> 00:00:50,559 mound where we think the material came 18 00:00:53,750 --> 00:00:51,600 down 19 00:00:55,590 --> 00:00:53,760 comets unlike any other body in the 20 00:00:56,950 --> 00:00:55,600 solar system are unique because when 21 00:00:58,630 --> 00:00:56,960 they're in the inner part of the solar 22 00:01:01,349 --> 00:00:58,640 system where the earth is they're 23 00:01:03,990 --> 00:01:01,359 literally coming apart and sending tons 24 00:01:07,030 --> 00:01:04,000 and tons of gas and rocks and dust out 25 00:01:09,190 --> 00:01:07,040 in space this spacecraft stardust 26 00:01:11,109 --> 00:01:09,200 went through this cloud of dust and 27 00:01:12,070 --> 00:01:11,119 rocks coming off the comet we have 28 00:01:14,469 --> 00:01:12,080 instruments on the front of the 29 00:01:16,230 --> 00:01:14,479 spacecraft called a dust flux monitor 30 00:01:18,789 --> 00:01:16,240 instrument and they have sensor to 31 00:01:22,310 --> 00:01:18,799 detect these impacts a good analogy of 32 00:01:25,990 --> 00:01:22,320 thinking of a like a b17 in world war ii 33 00:01:26,000 --> 00:01:33,109 that's it 34 00:01:35,830 --> 00:01:35,030 i have a message for any school kids out 35 00:01:37,749 --> 00:01:35,840 there 36 00:01:40,069 --> 00:01:37,759 who might be wondering how nasa can send 37 00:01:42,710 --> 00:01:40,079 a spacecraft billions of miles through 38 00:01:45,270 --> 00:01:42,720 the solar system and somehow wind up 39 00:01:47,749 --> 00:01:45,280 flying so close to a tiny comet only a