1 00:00:15,980 --> 00:00:13,190 about the size of a Volkswagen bug with 2 00:00:18,830 --> 00:00:15,990 extremely long antennas this robotic 3 00:00:21,230 --> 00:00:18,840 outer space Explorer called Voyager has 4 00:00:22,910 --> 00:00:21,240 dazzled scientists and laymen with 5 00:00:27,290 --> 00:00:22,920 photographs of planets in our solar 6 00:00:31,040 --> 00:00:27,300 system first traveling to Jupiter and to 7 00:00:33,200 --> 00:00:31,050 Saturn and now to Uranus Voyager has 8 00:00:35,600 --> 00:00:33,210 travelled a distance of 2 billion miles 9 00:00:37,400 --> 00:00:35,610 from Earth recently we have seen 10 00:00:40,580 --> 00:00:37,410 photographs from the little known world 11 00:00:42,619 --> 00:00:40,590 of Uranus appearing like a fuzzy 12 00:00:45,470 --> 00:00:42,629 blue-green tennis ball tipped on its 13 00:00:47,470 --> 00:00:45,480 side Uranus conceals its secrets under 14 00:00:50,540 --> 00:00:47,480 an atmosphere of hydrogen and helium 15 00:00:52,819 --> 00:00:50,550 it's southern polar region sits under a 16 00:00:55,069 --> 00:00:52,829 thin layer of haze produced by the 17 00:00:58,279 --> 00:00:55,079 action of sunlight much as smog is 18 00:01:00,560 --> 00:00:58,289 produced in our major cities scientists 19 00:01:02,510 --> 00:01:00,570 feel that Uranus has a very deep ocean 20 00:01:04,670 --> 00:01:02,520 of electrically conductive water that 21 00:01:07,880 --> 00:01:04,680 forms the planet's magnetic field and 22 00:01:10,730 --> 00:01:07,890 hosts a rocky inner core about the size 23 00:01:12,560 --> 00:01:10,740 of Earth it has been recently found that 24 00:01:16,370 --> 00:01:12,570 the magnetic field is largely offset 25 00:01:18,740 --> 00:01:16,380 from the planets center besides pointing 26 00:01:20,719 --> 00:01:18,750 at scientific sensors and TV cameras at 27 00:01:24,350 --> 00:01:20,729 Uranus and it's charcoal black rings 28 00:01:27,789 --> 00:01:24,360 Voyager discovered 10 new moons making a 29 00:01:30,830 --> 00:01:27,799 total of 15 known to circle the planet 30 00:01:32,390 --> 00:01:30,840 the close flyby of the moon Miranda 31 00:01:34,580 --> 00:01:32,400 proved to be one of the most exciting 32 00:01:38,210 --> 00:01:34,590 highlights of the encounter according to 33 00:01:40,190 --> 00:01:38,220 Voyager project manager dick laser we 34 00:01:43,340 --> 00:01:40,200 had worked so hard to make sure that 35 00:01:45,889 --> 00:01:43,350 those frames as those pictures would be 36 00:01:50,539 --> 00:01:45,899 exactly where we wanted them when that 37 00:01:53,870 --> 00:01:50,549 when the first of the series the miranda 38 00:01:56,990 --> 00:01:53,880 images amen and it clipped the corner of 39 00:01:59,959 --> 00:01:57,000 the satellite just where it was supposed 40 00:02:02,120 --> 00:01:59,969 to it was that sense of oh my god we did 41 00:02:04,700 --> 00:02:02,130 it and then I started looking at the 42 00:02:06,120 --> 00:02:04,710 substance of the pictures that varied 43 00:02:09,910 --> 00:02:06,130 topography 44 00:02:12,130 --> 00:02:09,920 really wild stuff Miranda is a blend of 45 00:02:14,110 --> 00:02:12,140 all the exotic surfaced topographies 46 00:02:14,650 --> 00:02:14,120 found in our solar system wrapped into 47 00:02:16,840 --> 00:02:14,660 one 48 00:02:19,780 --> 00:02:16,850 according to Voyager project scientist 49 00:02:23,730 --> 00:02:19,790 dr. edward stone what was surprising was 50 00:02:26,080 --> 00:02:23,740 the extent and the diversity of the 51 00:02:28,180 --> 00:02:26,090 geologic processes which were evident on 52 00:02:30,160 --> 00:02:28,190 the surface where it's much too cold to 53 00:02:32,560 --> 00:02:30,170 melt anything yet somehow that surface 54 00:02:34,120 --> 00:02:32,570 has moved has been reshaped by an 55 00:02:37,780 --> 00:02:34,130 internal heat source of unknown 56 00:02:39,730 --> 00:02:37,790 magnitude in the image processing lab at 57 00:02:42,070 --> 00:02:39,740 NASA's Jet Propulsion Laboratory in 58 00:02:45,040 --> 00:02:42,080 Pasadena California voyager imaging 59 00:02:47,920 --> 00:02:45,050 scientist dr. Terrence Johnson reviews 60 00:02:50,440 --> 00:02:47,930 Miranda's most dramatic feature an icy 61 00:02:52,930 --> 00:02:50,450 Rift Valley with sheer cliffs over ten 62 00:02:54,370 --> 00:02:52,940 miles high looking across here you're 63 00:02:56,110 --> 00:02:54,380 looking at cross something that's at 64 00:02:59,680 --> 00:02:56,120 saying what is ten times deeper than the 65 00:03:01,720 --> 00:02:59,690 Grand Canyon now in deep space Voyager 66 00:03:04,540 --> 00:03:01,730 is on a three-year journey to Neptune as