1 00:00:04,990 --> 00:00:09,079 fried planet presented price science at nasa 2 00:00:09,079 --> 00:00:14,209 astronomers have just cut a star in the active devouring one of its planet 3 00:00:14,209 --> 00:00:16,789 be depressed forty-eight seven forty 4 00:00:16,789 --> 00:00:19,869 a red giant day observed using the nine point two meter 5 00:00:19,869 --> 00:00:24,279 hobby and really telescope at the mcdonald observatory in texas 6 00:00:24,279 --> 00:00:28,720 appears to have the fumes of escorts to planet intent atmosphere 7 00:00:28,720 --> 00:00:30,050 this is consistent 8 00:00:30,050 --> 00:00:33,550 for the rocky world recently destroyed 9 00:00:33,550 --> 00:00:35,930 could the same thing happened to parents 10 00:00:35,930 --> 00:00:40,280 yes indeed says alex involves him a member of the research team from penn 11 00:00:40,280 --> 00:00:41,960 state university 12 00:00:41,960 --> 00:00:45,359 a similar fit me await the inner planets in our solar system 13 00:00:45,359 --> 00:00:50,320 when the sun becomes a red giant some five billion years from now 14 00:00:50,320 --> 00:00:54,150 researchers who specialize in stellar evolution have long known that the 15 00:00:54,150 --> 00:00:56,080 interplanetary in danger 16 00:00:56,080 --> 00:00:59,660 the trouble starts from the distant future when the sun score runs out of 17 00:00:59,660 --> 00:01:02,320 hydrogen fuel for nuclear fusion 18 00:01:02,320 --> 00:01:03,980 to keep the fires burning 19 00:01:03,980 --> 00:01:07,460 the sun will begin to fuse hydrogen outside the core 20 00:01:07,460 --> 00:01:10,710 in a layer closer to the stellar surface 21 00:01:10,710 --> 00:01:13,140 this will turn the sun into a red giant 22 00:01:13,140 --> 00:01:17,020 at least two hundred times wider than it is today 23 00:01:17,020 --> 00:01:19,330 Mercury Venus 24 00:01:19,330 --> 00:01:22,540 and possibly even mars could be engulfed 25 00:01:22,540 --> 00:01:25,500 the fate of earth is not a certainty however 26 00:01:25,500 --> 00:01:29,229 some researchers believe that births or that night spiral outward 27 00:01:29,229 --> 00:01:33,260 keeping the kind of had a safe distance from the approaching inferno 28 00:01:33,260 --> 00:01:37,730 this could happen if solar winds carry away a significant fraction of the sun's 29 00:01:37,730 --> 00:01:41,780 mass in the years leading up to the red giant pays 30 00:01:41,780 --> 00:01:43,130 on the other hand 31 00:01:43,130 --> 00:01:48,560 the sunlight expands so quickly at our planet has no chance to escape 32 00:01:48,560 --> 00:01:52,370 earth would get caught in the sun is rapidly advancing atmosphere 33 00:01:52,370 --> 00:01:56,150 and spiral inward to oblivion 34 00:01:56,150 --> 00:02:00,070 observations of red giant be depressed forty eight seven forty 35 00:02:00,070 --> 00:02:03,320 lend credence to the second possibility 36 00:02:03,320 --> 00:02:08,119 are detailed spectroscopic analysis and be depressed forty eight seven forty 37 00:02:08,119 --> 00:02:12,689 reveals that the red giant contained an abnormally high amount of the p m 38 00:02:12,689 --> 00:02:17,339 says monica item off who led the study and nicolas cooker nicotine adversity 39 00:02:17,339 --> 00:02:19,249 and taryn poland 40 00:02:19,249 --> 00:02:22,989 because we live here is the easily destroyed and stars finding lots of it 41 00:02:22,989 --> 00:02:25,769 in an all dread giant is unexpected 42 00:02:25,769 --> 00:02:28,389 the most likely source is a planet 43 00:02:28,389 --> 00:02:30,179 both sent explains 44 00:02:30,179 --> 00:02:33,889 it is probable that the lithium production in be depressed forty eight 45 00:02:33,889 --> 00:02:35,099 seven forty 46 00:02:35,099 --> 00:02:37,749 was triggered by a mask the size of the planet 47 00:02:37,749 --> 00:02:42,719 that spiraled into the star and heated up while the star was digesting it 48 00:02:42,719 --> 00:02:45,379 the team found another piece of evidence to 49 00:02:45,379 --> 00:02:47,660 bt close forty eight seven forty 50 00:02:47,660 --> 00:02:49,370 hasn't gastonia planet 51 00:02:49,370 --> 00:02:54,479 one point six times bigger than jupiter which has not yet been devoured 52 00:02:54,479 --> 00:02:57,199 the big planet has a highly elliptical or dead 53 00:02:57,199 --> 00:03:01,879 in fact it is the most elliptical orbit ever found for a planet around an older 54 00:03:07,969 --> 00:03:03,229 star 55 00:03:07,969 --> 00:03:10,309 some catastrophic event 56 00:03:10,309 --> 00:03:14,119 like it starr having inner planet for lunch 57 00:03:14,119 --> 00:03:18,689 one day he says our own solar system may end up the same way 58 00:03:18,689 --> 00:03:23,040 and five billion years tough ride planet could be here