1 00:00:20,900 --> 00:00:17,570 serenely beautiful from 93 million miles 2 00:00:24,560 --> 00:00:20,910 away the Sun is actually a violently 3 00:00:26,509 --> 00:00:24,570 energetic system so complex the numerous 4 00:00:29,000 --> 00:00:26,519 scientists like dr. Tom Duvall from 5 00:00:31,389 --> 00:00:29,010 NASA's Goddard Space Flight Center are 6 00:00:33,709 --> 00:00:31,399 dedicating their careers to its study 7 00:00:36,860 --> 00:00:33,719 working at the kid feat National 8 00:00:38,540 --> 00:00:36,870 Observatory outside Tucson Arizona dr. 9 00:00:46,440 --> 00:00:38,550 Duval and his colleagues use a variety 10 00:00:52,150 --> 00:00:49,930 this mcmath instrument on Kitt Peak is 11 00:00:56,380 --> 00:00:52,160 the largest solar telescope in the world 12 00:00:59,290 --> 00:00:56,390 an 81 inch mirror on its roof tracks the 13 00:01:01,600 --> 00:00:59,300 sun's daily passage sending a beam down 14 00:01:04,369 --> 00:01:01,610 the shaft extending 300 feet below 15 00:01:09,109 --> 00:01:07,219 the result is a unique high-resolution 16 00:01:13,219 --> 00:01:09,119 image of the Sun about two-and-a-half 17 00:01:15,380 --> 00:01:13,229 feet in diameter dr. Duval hopes to get 18 00:01:17,569 --> 00:01:15,390 at the causes of solar activity by 19 00:01:21,230 --> 00:01:17,579 determining what's going on in the sun's 20 00:01:24,440 --> 00:01:21,240 interior his ultimate goal to predict 21 00:01:26,600 --> 00:01:24,450 some of the phenomena associated with 22 00:01:29,419 --> 00:01:26,610 solar activity that are troublesome to 23 00:01:32,330 --> 00:01:29,429 us here on earth most of dr. Duval's 24 00:01:35,749 --> 00:01:32,340 work is done in this 81 foot high solar 25 00:01:38,059 --> 00:01:35,759 vacuum telescope again mirrors are used 26 00:01:43,550 --> 00:01:38,069 to reflect an image of the Sun down into 27 00:01:46,429 --> 00:01:43,560 the instruments control room here a 28 00:01:50,449 --> 00:01:46,439 daily map of magnetic phenomena on the 29 00:01:53,179 --> 00:01:50,459 sun's surface is produced nearly all 30 00:01:56,449 --> 00:01:53,189 forms of solar activity from some spots 31 00:01:58,480 --> 00:01:56,459 the flares create magnetic fields if 32 00:02:00,919 --> 00:01:58,490 these disturbances are strong enough 33 00:02:03,469 --> 00:02:00,929 Communications on earth can be disrupted 34 00:02:09,650 --> 00:02:03,479 there may even be a relationship between 35 00:02:15,470 --> 00:02:12,440 at NASA's Marshall Space Flight Center 36 00:02:17,900 --> 00:02:15,480 in Huntsville Alabama Richard Hoover an 37 00:02:21,380 --> 00:02:17,910 astrophysicist studies the Sun with 38 00:02:23,720 --> 00:02:21,390 x-ray telescopes this mirror was part of 39 00:02:28,640 --> 00:02:23,730 an instrument used on Skylab to produce 40 00:02:31,070 --> 00:02:28,650 solar images today Hoover and scientists 41 00:02:32,930 --> 00:02:31,080 from Stanford University are working 42 00:02:36,290 --> 00:02:32,940 with the new generation of x-ray 43 00:02:38,720 --> 00:02:36,300 telescopes and they're producing 44 00:02:41,270 --> 00:02:38,730 phenomenally high resolution images 45 00:02:46,040 --> 00:02:41,280 reveal in solar turbulence has never 46 00:02:52,530 --> 00:02:50,370 launched in 1980 the 5,500 pounds solar 47 00:02:54,450 --> 00:02:52,540 maximum spacecraft in Congress to 48 00:02:56,820 --> 00:02:54,460 produce information about the center 49 00:02:59,100 --> 00:02:56,830 since being repaired I NASA passed 50 00:03:01,500 --> 00:02:59,110 around its instruments encroaching on 51 00:03:06,510 --> 00:03:01,510 your door toc reports and seller max is 52 00:03:10,199 --> 00:03:06,520 dead on the Sun when the shuttle lives 53 00:03:12,300 --> 00:03:10,209 over in October 1990 it will carry its 54 00:03:14,870 --> 00:03:12,310 cargo bay another spacecraft that will 55 00:03:17,460 --> 00:03:14,880 take a president and look at the Sun 56 00:03:21,060 --> 00:03:17,470 developed by NASA and the European Space 57 00:03:24,150 --> 00:03:21,070 Agency Ulysses will fly over the solar 58 00:03:27,810 --> 00:03:24,160 poles regions of the Sun which may hold 59 00:03:29,840 --> 00:03:27,820 important clues about its nature Ulysses 60 00:03:33,000 --> 00:03:29,850 five-year journey of exploration 61 00:03:35,640 --> 00:03:33,010 together with ceramics and discoveries 62 00:03:38,130 --> 00:03:35,650 being made by NASA scientists around the 63 00:03:42,120 --> 00:03:38,140 country will greatly enhance our