1 00:00:08,070 --> 00:00:05,749 hubble is all about imagery 2 00:00:09,750 --> 00:00:08,080 it's all about taking clear sharp 3 00:00:17,189 --> 00:00:09,760 beautiful pictures of the sky and doing 4 00:00:21,349 --> 00:00:19,269 the story of the hubble space telescope 5 00:00:23,029 --> 00:00:21,359 launch is best uh the way i like to 6 00:00:25,029 --> 00:00:23,039 describe it is uh 7 00:00:27,189 --> 00:00:25,039 climbing to the top of mount everest and 8 00:00:28,710 --> 00:00:27,199 then suddenly within a couple months of 9 00:00:34,150 --> 00:00:28,720 sinking to the bottom of the dead sea 10 00:00:38,470 --> 00:00:36,229 we were having trouble focusing the 11 00:00:40,069 --> 00:00:38,480 telescope and uh 12 00:00:41,430 --> 00:00:40,079 we noticed that wide field camera 13 00:00:43,750 --> 00:00:41,440 pictures that were coming down were 14 00:00:46,229 --> 00:00:43,760 fuzzy fuzzy blobs instead of nice sharp 15 00:00:47,990 --> 00:00:46,239 points and over the course of early june 16 00:00:49,830 --> 00:00:48,000 we started to get worried maybe maybe 17 00:00:52,150 --> 00:00:49,840 there's something wrong with the mirror 18 00:00:54,389 --> 00:00:52,160 itself you can't believe how down every 19 00:00:55,670 --> 00:00:54,399 astronomer on the hubble team was that 20 00:00:56,630 --> 00:00:55,680 day because we're about to announce to 21 00:00:58,709 --> 00:00:56,640 the world 22 00:01:00,790 --> 00:00:58,719 we messed up we don't have the telescope 23 00:01:02,950 --> 00:01:00,800 we thought the conclusion we've come to 24 00:01:04,869 --> 00:01:02,960 from that is that there's a significant 25 00:01:06,469 --> 00:01:04,879 spherical aberration appears to be 26 00:01:07,990 --> 00:01:06,479 present in the optics and the simplest 27 00:01:10,550 --> 00:01:08,000 way of understanding it is that when you 28 00:01:12,310 --> 00:01:10,560 have a mirror that's focusing the light 29 00:01:13,750 --> 00:01:12,320 all comes together at a single point is 30 00:01:15,190 --> 00:01:13,760 the objective of the exercise you want 31 00:01:17,190 --> 00:01:15,200 the light to come together and focus at 32 00:01:18,870 --> 00:01:17,200 a single point when you have spherical 33 00:01:20,710 --> 00:01:18,880 aberration it says that there's some 34 00:01:22,390 --> 00:01:20,720 disfigurement of that mirror that causes 35 00:01:24,310 --> 00:01:22,400 a light instead of focusing at a single 36 00:01:25,749 --> 00:01:24,320 point to be spread across a region in 37 00:01:27,749 --> 00:01:25,759 space 38 00:01:29,749 --> 00:01:27,759 and suddenly in the press was born the 39 00:01:31,910 --> 00:01:29,759 term hubble trouble 40 00:01:34,149 --> 00:01:31,920 i remember giving a talk to some young 41 00:01:35,350 --> 00:01:34,159 kids they were kindergarten kids really 42 00:01:37,830 --> 00:01:35,360 young kids 43 00:01:40,950 --> 00:01:37,840 about the wonders you know hubble and 44 00:01:43,109 --> 00:01:40,960 i said the word hubble telescope 45 00:01:44,870 --> 00:01:43,119 it was like i was jay leno everybody 46 00:01:46,710 --> 00:01:44,880 laughed 47 00:01:48,550 --> 00:01:46,720 it was a very sad very difficult time 48 00:01:57,830 --> 00:01:48,560 and some people left the program and 49 00:02:01,990 --> 00:02:00,310 john gave me this one ray of hope it was 50 00:02:04,630 --> 00:02:02,000 that one little ray of hope that i 51 00:02:05,910 --> 00:02:04,640 glommed onto we played with it we played 52 00:02:08,229 --> 00:02:05,920 with the model 53 00:02:10,309 --> 00:02:08,239 and we realized that if the error were 54 00:02:12,470 --> 00:02:10,319 in the primary mirror 55 00:02:15,190 --> 00:02:12,480 we could make our correction with a 56 00:02:18,229 --> 00:02:15,200 little mirror about the size of a nickel 57 00:02:19,670 --> 00:02:18,239 inside our camera so we purposely made 58 00:02:22,309 --> 00:02:19,680 the mirror in our instrument and 59 00:02:23,990 --> 00:02:22,319 therefore our whole camera out of focus 60 00:02:26,309 --> 00:02:24,000 with a minus sign 61 00:02:29,510 --> 00:02:26,319 it was as profoundly out of focus as the 62 00:02:31,990 --> 00:02:29,520 hubble telescope was exactly 63 00:02:33,910 --> 00:02:32,000 and that was not easy 64 00:02:35,830 --> 00:02:33,920 we were finishing up the final optical 65 00:02:38,309 --> 00:02:35,840 alignment and the nasa administrator dan 66 00:02:39,830 --> 00:02:38,319 golden visited jpl we went to the clean 67 00:02:41,430 --> 00:02:39,840 room and he said 68 00:02:43,190 --> 00:02:41,440 what's going on here 69 00:02:45,110 --> 00:02:43,200 larry simmons the project manager says 70 00:02:46,390 --> 00:02:45,120 well we're here to fix the hubble 71 00:02:48,869 --> 00:02:46,400 telescope 72 00:02:50,710 --> 00:02:48,879 and his response was no you're here to 73 00:02:52,869 --> 00:02:50,720 save the agency 74 00:02:57,110 --> 00:02:52,879 that was a clear message to us that it 75 00:02:59,589 --> 00:02:57,120 was important we shall not fail 76 00:03:01,830 --> 00:02:59,599 okay are you ready to let go shortly 77 00:03:04,470 --> 00:03:01,840 after the mission was over 78 00:03:06,710 --> 00:03:04,480 we brought with pictu online 79 00:03:08,710 --> 00:03:06,720 we'd done everything that we thought we 80 00:03:13,190 --> 00:03:08,720 had to do but there's no substitute for 81 00:03:16,949 --> 00:03:15,190 the first image came and it looked 82 00:03:22,070 --> 00:03:16,959 really good i mean it looked just the 83 00:03:26,390 --> 00:03:23,990 we did like nine press conferences in a 84 00:03:28,149 --> 00:03:26,400 row with primarily with pick pictures 85 00:03:31,350 --> 00:03:28,159 every single one made front page news 86 00:03:36,070 --> 00:03:33,430 it took this camera 87 00:03:37,990 --> 00:03:36,080 being put in the hubble in 1993 to 88 00:03:40,149 --> 00:03:38,000 really start the career of hubble to 89 00:03:42,470 --> 00:03:40,159 turn hubble from a national disgrace 90 00:03:43,430 --> 00:03:42,480 almost to the great american comeback 91 00:03:45,270 --> 00:03:43,440 story 92 00:03:47,589 --> 00:03:45,280 and here it is still our workhorse 93 00:03:49,509 --> 00:03:47,599 camera going on 15 years 94 00:03:50,789 --> 00:03:49,519 it's going to be a tough moment when 95 00:03:52,789 --> 00:03:50,799 it comes out of the hubble because i 96 00:03:55,190 --> 00:03:52,799 remember exactly the moment it was 97 00:03:57,030 --> 00:03:55,200 emplaced in the hubble but i really look 98 00:03:59,270 --> 00:03:57,040 forward to be able to walk up to it and