1 00:00:12,620 --> 00:00:10,669 Space scoot you might have heard that 2 00:00:14,930 --> 00:00:12,630 much of the material making up the world 3 00:00:18,170 --> 00:00:14,940 around us was forged in the hot bellies 4 00:00:20,750 --> 00:00:18,180 of massive stars but how do we know this 5 00:00:23,029 --> 00:00:20,760 we can't send probes to investigate 6 00:00:25,340 --> 00:00:23,039 because there isn't a material on earth 7 00:00:29,380 --> 00:00:25,350 that can withstand the immense heat 8 00:00:32,799 --> 00:00:29,390 inside a star without being vaporized 9 00:00:35,450 --> 00:00:32,809 luckily for us but not for the stars 10 00:00:38,270 --> 00:00:35,460 every star over eight times heavier than 11 00:00:42,380 --> 00:00:38,280 our Sun will eventually explode as a 12 00:00:44,000 --> 00:00:42,390 supernova when this happens all the 13 00:00:47,720 --> 00:00:44,010 stars innards are launched into space 14 00:00:50,330 --> 00:00:47,730 for everyone to see a supernova 15 00:00:54,319 --> 00:00:50,340 explosion also makes rare elements like 16 00:00:58,910 --> 00:00:54,329 gold titanium and uranium and can 17 00:01:01,939 --> 00:00:58,920 briefly outshine an entire galaxy each 18 00:01:04,939 --> 00:01:01,949 of these four fabulous photographs shows 19 00:01:06,969 --> 00:01:04,949 the remains of an exploded star called a 20 00:01:09,310 --> 00:01:06,979 supernova remnant 21 00:01:12,370 --> 00:01:09,320 the pictures were released by NASA's 22 00:01:16,840 --> 00:01:12,380 Chandra x-ray Observatory to celebrate 23 00:01:18,370 --> 00:01:16,850 the telescope's 15th birthday Chandra is 24 00:01:20,889 --> 00:01:18,380 a telescope that is specially designed 25 00:01:23,160 --> 00:01:20,899 to look at x-rays that come from very 26 00:01:27,340 --> 00:01:23,170 hot places and objects in the universe 27 00:01:29,080 --> 00:01:27,350 including exploded stars because the 28 00:01:30,940 --> 00:01:29,090 explosions have superheated these 29 00:01:35,289 --> 00:01:30,950 stellar wreckages they glow very 30 00:01:37,149 --> 00:01:35,299 brightly in x-ray light since the 31 00:01:40,469 --> 00:01:37,159 Earth's atmosphere blocks x-rays from 32 00:01:43,419 --> 00:01:40,479 space Chandra has to orbit high above it 33 00:01:46,630 --> 00:01:43,429 it currently looks at the universe up to 34 00:01:49,389 --> 00:01:46,640 an altitude of 140,000 kilometers above 35 00:01:52,179 --> 00:01:49,399 the earth from this ideal position 36 00:01:54,819 --> 00:01:52,189 Chandra can create x-ray pictures with 37 00:01:57,639 --> 00:01:54,829 superb detail allowing us to study the 38 00:02:01,809 --> 00:01:57,649 shape movement and chemical makeup of 39 00:02:09,190 --> 00:02:01,819 supernova remnants the objects are the 40 00:02:20,720 --> 00:02:09,200 Crab Nebula G 290 2.0 + 1.8 Tycho's 41 00:02:25,490 --> 00:02:23,150 space scoop is brought to you by NASA's