1 00:00:08,750 --> 00:00:05,930 looking for a new vacation spot 2 00:00:12,910 --> 00:00:08,760 I've heard that gamma-ray bursts are 3 00:00:20,870 --> 00:00:16,609 no oh no no no no no no no I I was just 4 00:00:26,330 --> 00:00:20,880 no no they're far too dangerous 5 00:00:32,650 --> 00:00:29,210 so you're really going to go 6 00:00:38,330 --> 00:00:32,660 then you need to know a few things first 7 00:00:40,790 --> 00:00:38,340 a gamma-ray burst is a giant burrs 8 00:00:43,729 --> 00:00:40,800 of gamma rays 9 00:00:45,830 --> 00:00:43,739 the highest energy form of life they 10 00:00:48,830 --> 00:00:45,840 mostly come from either two neutron 11 00:00:51,830 --> 00:00:48,840 stars crashing together or a massive 12 00:00:54,110 --> 00:00:51,840 star collapsing in on itself both likely 13 00:00:56,750 --> 00:00:54,120 form black holes that blast out a pair 14 00:01:00,170 --> 00:00:56,760 of cones of super fast super hot 15 00:01:03,049 --> 00:01:00,180 material these Jets emit the gamma rays 16 00:01:05,270 --> 00:01:03,059 that give gamma-ray bursts their name 17 00:01:08,630 --> 00:01:05,280 if you're in the path of that cone even 18 00:01:12,469 --> 00:01:08,640 very very far away you see a gamma ray 19 00:01:16,670 --> 00:01:12,479 burst not in the cone no gamma-ray burst 20 00:01:19,250 --> 00:01:16,680 but the show isn't over yet as that cone 21 00:01:21,770 --> 00:01:19,260 Rams into the stuff around it there's 22 00:01:25,670 --> 00:01:21,780 another display across the whole range 23 00:01:28,310 --> 00:01:25,680 of light from radio waves to gamma rays 24 00:01:30,890 --> 00:01:28,320 well then there's other possible light 25 00:01:33,289 --> 00:01:30,900 shows too the the Supernova from the 26 00:01:35,929 --> 00:01:33,299 collapsing star or the kill Anova from 27 00:01:37,490 --> 00:01:35,939 the murderer you get the idea it's a 28 00:01:40,190 --> 00:01:37,500 brilliant display 29 00:01:43,310 --> 00:01:40,200 now gamma ray bursts may be the greatest 30 00:01:46,870 --> 00:01:43,320 show in town but knowing when and where 31 00:01:49,510 --> 00:01:46,880 to look can be tricky over at Earth 32 00:01:51,889 --> 00:01:49,520 they're also known as 33 00:01:54,469 --> 00:01:51,899 glarbacks209d depending on where you're 34 00:01:56,870 --> 00:01:54,479 from gamma ray detectors monitor the 35 00:01:59,030 --> 00:01:56,880 whole Sky to find these unpredictable 36 00:02:01,910 --> 00:01:59,040 events but if you want to visit one 37 00:02:04,190 --> 00:02:01,920 you'll need to find it before that blast 38 00:02:06,649 --> 00:02:04,200 of gamma rays first you mean to decide 39 00:02:08,870 --> 00:02:06,659 which type you want to see the initial 40 00:02:11,510 --> 00:02:08,880 burst from the crashing Stars last is 41 00:02:13,670 --> 00:02:11,520 just a couple of seconds or less while 42 00:02:15,170 --> 00:02:13,680 the collapsing star can have a burst 43 00:02:17,990 --> 00:02:15,180 lasting minutes 44 00:02:20,630 --> 00:02:18,000 but timing your visit to the collapsing 45 00:02:24,110 --> 00:02:20,640 star might be a problem unless you're 46 00:02:25,850 --> 00:02:24,120 willing to wait the long time like 47 00:02:28,130 --> 00:02:25,860 really long 48 00:02:31,550 --> 00:02:28,140 we know of quite a few stars that could 49 00:02:35,990 --> 00:02:31,560 collapse soon but that could mean a day 50 00:02:38,390 --> 00:02:36,000 like year a million years or more 51 00:02:40,010 --> 00:02:38,400 predicting when the stars will crash is 52 00:02:41,750 --> 00:02:40,020 a bit easier if you're willing to do a 53 00:02:43,850 --> 00:02:41,760 little homework 54 00:02:46,550 --> 00:02:43,860 just find a close pair of orbiting 55 00:02:48,890 --> 00:02:46,560 neutron stars watch them for a few 56 00:02:51,290 --> 00:02:48,900 orbits add some math and you can predict 57 00:02:54,229 --> 00:02:51,300 when they'll crash 58 00:02:56,150 --> 00:02:54,239 now before you run off make sure you 59 00:02:59,150 --> 00:02:56,160 have what you need to keep yourself from 60 00:03:03,530 --> 00:02:59,160 getting blasted by those gamma rays 61 00:03:05,449 --> 00:03:03,540 fur the glarback's 29d has an atmosphere 62 00:03:08,270 --> 00:03:05,459 that Shields the planet and its 63 00:03:10,490 --> 00:03:08,280 inhabitants from gamma rays 64 00:03:12,649 --> 00:03:10,500 and you'll need to be able to detect 65 00:03:15,309 --> 00:03:12,659 light in all its forms if you want to 66 00:03:17,750 --> 00:03:15,319 see the full show 67 00:03:20,330 --> 00:03:17,760 of course all of this doesn't account 68 00:03:24,170 --> 00:03:20,340 for the fact that gamma-ray bursts don't 69 00:03:26,809 --> 00:03:24,180 happen nearby the closest so far is over 70 00:03:28,490 --> 00:03:26,819 a hundred million light years away and 71 00:03:30,770 --> 00:03:28,500 most are billions 72 00:03:32,809 --> 00:03:30,780 so you'll need to find a Galaxy where 73 00:03:34,850 --> 00:03:32,819 this is more likely 74 00:03:45,170 --> 00:03:34,860 but it looks like you've worked all of