1 00:00:02,040 --> 00:00:08,799 Speaker 1: Welcome to brain Stuff from How Stuff Works. Hey, brain Stuff, 2 00:00:08,840 --> 00:00:12,000 Speaker 1: Christian Sager here, did you know that over a hundred 3 00:00:12,080 --> 00:00:14,920 Speaker 1: items have been left behind on the surface of the Moon. 4 00:00:15,400 --> 00:00:21,480 Speaker 1: We're talking about spacecraft, moon boots, cameras, flags, and even 5 00:00:21,600 --> 00:00:26,320 Speaker 1: ninety six bags of urine, feces and vomit. That's right, everybody, 6 00:00:26,520 --> 00:00:29,960 Speaker 1: astronauts dumped their porta potties on the Moon. Are you 7 00:00:30,000 --> 00:00:32,280 Speaker 1: thinking what I'm thinking? We could fly to the Moon 8 00:00:32,520 --> 00:00:35,360 Speaker 1: and steal all that stuff, but we better hurry because 9 00:00:35,400 --> 00:00:39,040 Speaker 1: several states have lobbied to make lunar landing sites into 10 00:00:39,159 --> 00:00:43,840 Speaker 1: national monuments, and while we'd get arrested before we execute 11 00:00:43,840 --> 00:00:46,839 Speaker 1: this great moonheist. Though, we'll need to locate where the 12 00:00:46,880 --> 00:00:50,199 Speaker 1: astronauts left the loot. But wait a minute, can we 13 00:00:50,280 --> 00:00:54,440 Speaker 1: even see what they left there? It turns out no, 14 00:00:54,520 --> 00:00:57,640 Speaker 1: not yet see The resolving power of even our best 15 00:00:57,800 --> 00:01:01,440 Speaker 1: telescopes is too low give in our distance from the Moon. 16 00:01:01,840 --> 00:01:05,959 Speaker 1: The best available today is the Hubble space telescope. From 17 00:01:05,959 --> 00:01:09,839 Speaker 1: its location in Earth's lower orbit. The Hubble only has 18 00:01:09,920 --> 00:01:13,720 Speaker 1: about a one and fifty meter resolution when pointed at 19 00:01:13,800 --> 00:01:17,200 Speaker 1: the Moon. So, for example, something really big like a 20 00:01:17,280 --> 00:01:21,680 Speaker 1: football stadium would only occupy two pixels in an image 21 00:01:21,680 --> 00:01:25,080 Speaker 1: that the hubble could generate, we definitely wouldn't be able 22 00:01:25,120 --> 00:01:28,479 Speaker 1: to see lunar rovers or landing bases, much less those 23 00:01:28,520 --> 00:01:32,920 Speaker 1: precious bags of Armstrong's poop. Probably the only thing we 24 00:01:32,959 --> 00:01:35,520 Speaker 1: can currently see on the Moon is a laser beam 25 00:01:35,560 --> 00:01:39,399 Speaker 1: reflector left there in nineteen sixty nine to measure the 26 00:01:39,440 --> 00:01:45,080 Speaker 1: distance back to Earth. However, there are several telescopes currently 27 00:01:45,080 --> 00:01:48,680 Speaker 1: in production that, once finished, will enhance the visibility of 28 00:01:48,720 --> 00:01:54,120 Speaker 1: the Moon's surface significantly. For instance, the Giant Magellan telescope 29 00:01:54,120 --> 00:01:57,680 Speaker 1: in northern Chile should be working by the year and 30 00:01:57,720 --> 00:02:00,920 Speaker 1: it's planned to have ten times the resolving power of 31 00:02:00,920 --> 00:02:04,920 Speaker 1: the hubble, giving it close to a fifteen meter resolution. 32 00:02:05,360 --> 00:02:08,760 Speaker 1: The lunar lander base is close to ten meters long, 33 00:02:08,880 --> 00:02:12,600 Speaker 1: so you could see it, but barely. But why settle 34 00:02:12,680 --> 00:02:15,960 Speaker 1: for squinting when the superior James Web Space telescope is 35 00:02:15,960 --> 00:02:19,840 Speaker 1: shooting for a launch date in the web will have 36 00:02:20,080 --> 00:02:25,080 Speaker 1: eighteen hexagonal reflectors to collect light with, making it seven 37 00:02:25,120 --> 00:02:28,320 Speaker 1: times the size of the hubble and a hundred times 38 00:02:28,320 --> 00:02:31,320 Speaker 1: more powerful. That will give it a one point five 39 00:02:31,400 --> 00:02:35,880 Speaker 1: meter resolution, more than enough to locate landers, rovers and 40 00:02:36,000 --> 00:02:39,680 Speaker 1: hopefully bags and bags of extrement. How much do you 41 00:02:39,720 --> 00:02:47,480 Speaker 1: think we can get for those? On eBay? And check 42 00:02:47,480 --> 00:02:49,560 Speaker 1: out the brain stuff channel on YouTube. And for more 43 00:02:49,560 --> 00:02:52,120 Speaker 1: on this and thousands of other topics, visit how stuff 44 00:02:52,120 --> 00:03:06,640 Speaker 1: works dot com