1 00:00:22,620 --> 00:00:19,950 glassed is designed to look at gamma 2 00:00:24,450 --> 00:00:22,630 rays and gamma rays of the highest 3 00:00:26,070 --> 00:00:24,460 energy form of light there's the light 4 00:00:28,320 --> 00:00:26,080 we see with our eyes but there are lots 5 00:00:30,179 --> 00:00:28,330 of other types of light gamma rays are 6 00:00:33,689 --> 00:00:30,189 the most energetic form of light the 7 00:00:34,979 --> 00:00:33,699 most powerful gamma rays are the part of 8 00:00:35,849 --> 00:00:34,989 what we call the electromagnetic 9 00:00:37,950 --> 00:00:35,859 spectrum 10 00:00:40,590 --> 00:00:37,960 which starts in radio at very long 11 00:00:42,569 --> 00:00:40,600 wavelengths goes through optical then 12 00:00:44,759 --> 00:00:42,579 through x-rays and then gamma rays at 13 00:00:47,099 --> 00:00:44,769 the very highest energy form of that 14 00:00:48,479 --> 00:00:47,109 type of radiation the reason it's 15 00:00:51,360 --> 00:00:48,489 important to look at the high-energy 16 00:00:53,039 --> 00:00:51,370 gamma rays is that many objects the most 17 00:00:55,590 --> 00:00:53,049 violent and some of the most interesting 18 00:00:57,479 --> 00:00:55,600 objects in the universe emit most of 19 00:00:59,189 --> 00:00:57,489 their light in this high-energy gamma 20 00:01:01,199 --> 00:00:59,199 ray part and the only thing that can 21 00:01:02,849 --> 00:01:01,209 generate gamma rays are incredibly 22 00:01:05,369 --> 00:01:02,859 violent events incredibly energetic 23 00:01:07,830 --> 00:01:05,379 events and we're talking stars exploding 24 00:01:10,380 --> 00:01:07,840 and neutron stars with really strong 25 00:01:12,149 --> 00:01:10,390 magnetic fields and really exotic and 26 00:01:14,490 --> 00:01:12,159 strange objects like that 27 00:01:16,980 --> 00:01:14,500 it's like Christmas trees shining and 28 00:01:19,169 --> 00:01:16,990 it's flaring there are Russians every 29 00:01:21,359 --> 00:01:19,179 day gamma ray bursts being example 30 00:01:23,760 --> 00:01:21,369 something that for a brief instant of 31 00:01:25,440 --> 00:01:23,770 time outshines the entire rest of the 32 00:01:29,370 --> 00:01:25,450 universe these are the biggest 33 00:01:35,290 --> 00:01:32,340 we think that there are the signals that 34 00:01:37,570 --> 00:01:35,300 happen when a black hole is born we 35 00:01:39,580 --> 00:01:37,580 don't know in detail how it works and by 36 00:01:42,040 --> 00:01:39,590 looking with glass we'll be able to 37 00:01:45,790 --> 00:01:42,050 study the physics of what causes a 38 00:01:48,010 --> 00:01:45,800 gamma-ray burst the thing is that most 39 00:01:50,410 --> 00:01:48,020 of the gamma rays we look at in terms of 40 00:01:52,300 --> 00:01:50,420 gamma-ray astronomy never reach people 41 00:01:55,030 --> 00:01:52,310 in the atmosphere essentially absorbs 42 00:01:56,830 --> 00:01:55,040 all of those chemicals which is the 43 00:01:58,810 --> 00:01:56,840 reason why glass has to fly on the 44 00:02:01,120 --> 00:01:58,820 settlor there's none of the gamma rays 45 00:02:03,580 --> 00:02:01,130 we want to see actually to make it to 46 00:02:04,990 --> 00:02:03,590 the ground glass is going to open up 47 00:02:07,000 --> 00:02:05,000 that part of the electromagnetic 48 00:02:10,389 --> 00:02:07,010 spectrum to better understand the 49 00:02:12,640 --> 00:02:10,399 universe it provides the widest energy 50 00:02:15,220 --> 00:02:12,650 coverage for gamma-ray bursts that has 51 00:02:17,650 --> 00:02:15,230 ever been put into space it's going to 52 00:02:19,750 --> 00:02:17,660 see the frontiers of many objects 53 00:02:21,610 --> 00:02:19,760 high-energy objects in history shows 54 00:02:23,590 --> 00:02:21,620 that when you open up a new band in the