Artemis: Why Are We Really Going Back to the Moon?

0:00Hi, I'm Wendy Zukerman and you're listening to Science Versus. Ten, nine, eight, seven. Today we are pitting facts against frontiers. Four, three, two, one. As we tackle the moon. And lift off. The crew of Artemis II now bound for the moon. Humanity's next great voyage begins. This week, four astronauts flew around the moon. going further into space than humans ever have before. The NASA mission is called Artemis 2 and they're scheduled to splash down back on Earth tomorrow. And all over the world, people have been stunned by this journey. Oh, my goodness! Oh! It's not just what you see and you hear as the rocket lifts off.

0:51You can actually feel the force of it through your body. It's absolutely amazing what's going on right now, and all I can say is, wow. She is the first woman to ever see the entirety of our planet. The world is following every moment of this mission, and that includes how the astronauts are getting by with a temperamental loo. Houston, we have a toilet burning. They're seeing shadows, and when you see shadows, you get to see terrain and relief, and you get to see the scale of the mountains. You can hear the excitement in their voice when they're talking about these craters. It's absolutely phenomenal.

1:23The astronauts themselves are in awe of everything they're saying. Well, last night we did have our first view of the moon far side, and it was just absolutely spectacular. You can see Copernicus, Rainier Gamma. It's just everything and absolutely unbelievable. This is incredible. Coffee moon joy.

1:49And while these astronauts didn't land on the moon, in just two years, NASA hopes to get people to walk on the moon for the first time in over 50 years. And when that happens, when we actually see people walking on the moon again, that is sure to send our moon joy into warp drive. Angel Abud Madrid, who studies space exploration now, remembers that moment back in 1969 and how amazing it was. He was eight years old living in Chihuahua, Mexico, and his dad woke him up to see it. And I just remember very clearly my dad shaking me. Okay, come on, you got to watch this. What do you remember from seeing on the screen?

2:35It was a small black and white TV, and it was this grainy picture, and I start watching and I see the humans stepping out. That's one small step for man.

2:52One giant leap for mankind. My dad keeps saying, this is a momentous occasion. We were talking about it the day after everybody was talking about it and my uncle, my aunts were like, did you watch this? It was incredible. I mean, we made it to the moon, how far we had gone.

3:16And there in the corner was Grandma saying, yeah, yeah, yeah, but don't we have enough problems here to be worrying about the moon? Why are we doing this? And that really stuck with me. And not to be a moon killjoy here, but more than 50 years on, Grandma's still got a really good question here. Why are we doing this, really? After all, back in 1969, what felt like this big day for humankind was also this huge political pissing contest between the US and the Soviet Union. And around the time the US won, they slashed NASA's budget. And for decades, no one's been that serious about going back to the moon.

4:04That was until, well, just several years ago, really. Just as the U.S. and China are getting particularly sassy with each other, here we go again. The race to the moon is back on with some new players as well. China's lunar rover touched down last night on the far side of the moon. India is set to head to the moon. Israel, South Korea, Japan. In the last, you know, five years or so, this has really exploded in terms of interest. There are 73 space agencies and probably 20 more are being planned because every country is realizing maybe there's something in it for us. Like what? In a recent NASA report, they said that a big reason to go to the moon would be to keep the U.S.

4:52in the leader's position. Yeah, so they can keep on winning. And this week, President Trump posted, quote, we are winning in space, on Earth, and everywhere in between, economically, militarily, and now beyond the stars. Nobody comes close, end quote. So is this just about winning? Today on the show, we're returning to an episode that we ran a few years ago to ask, why are we really going back to the moon? And when you listen to politicians and bigwigs in this space talk about why we are doing this, two big things come up a lot. And that's what we're going to rove through today. One is this idea of a lunar gold rush.

5:38Some say that there are trillions of dollars of resources up there in the moon waiting to be mined. And the first country to grab them will be one step closer to global domination. The second thing is going to Mars. People are arguing that going to the moon is crucial to getting to our ultimate destination, the red planet. But is that for real? When it comes to the moon, there's a lot of... Why are we doing this? But then there's science.

6:12Science vs the Moon is coming up just after the break.

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7:27Welcome back. Today we're asking, why are we going back to the moon, really? Well, one reason is this idea of a lunar gold rush. That the moon is a treasure trove of valuable stuff just waiting for us to dig it all up. And the first country to get their hooks in wins. Now, we know that the moon does have untapped resources in it. When the Apollo astronauts brought back moon rocks, scientists discovered that, yes, they contained rare earth elements, which are super important to our lives today. They're part of our renewable energy industry. They are on your phones. The phone that you have in your hand right now has rare earth.

8:12They are in your cars. So it's part of our society right now. That's Ángel Abud-Madrid again. He's now the director of the Center for Space Resources at the Colorado School of Mines. Ángel told us that one of these rare earth elements is called terbium. If you haven't heard of it, it's a shiny, soft metal. And it's used to make the color green on your phone. And there's a bunch of elements like this. Some of them are really hard to pronounce. Lanthanum and utrium and... Like neodymium and dysprosium. Rare Earths are also used in stuff like solar panels and electric cars. The problem is that on Earth, mining these elements is pretty nasty.

8:57It can pollute soil and waterways. Plus, the vast majority of Rare Earths that we use come from China. And so the idea is that if the U.S. or other countries could get their mitts on the stuff on the moon and then mine it without polluting the Earth, that would be win-win. So people thought... Well, these are important elements, and we found them on the Moon. Would it be worth going after them? And to you, is it worth going after them? Uh, not at this point. Not from the information that we have. So even though these things are called rare Earth elements, there's actually a lot of them here on Earth, and not just in China.

9:41That's just currently where most of the mining is happening. All over the globe, we're finding these elements. Even though they're called rare earth elements, they're actually not that rare. They're not actually that rare, believe it or not. And curiously, there isn't even that much of this stuff on the moon. We know from satellite data that there's a bit of a hotspot of rare earths which happens to be on the right eye of the man in the moon. But even there, the elements aren't just sitting there like a big nugget of gold. They're diluted, mixed up with the moon dirt, and would be hard to mine.

10:19Let me give you an analogy. It's like, if you want to get rare earth on earth, it's like putting a bucket in Seattle or New Orleans and collecting rainwater from there. As compared as on the moon, it would be as having a bucket on Death Valley. Probably one of the driest places on Earth. You're looking for droplets. Wow. This is really a bad idea. At this point, it is. So it's sounding like we should probably work out ways to mine rare earths safely here on Earth and even get better at recycling the stuff on our phones before we resort to all the hassle and expense of going to the moon for these elements.

11:04Now, there is another idea that's been making the rounds on the web and in science fiction. And it's that the real treasure on the moon is this thing called helium-3. One Apollo astronaut has called it, quote, the best reason to return to the moon in the 21st century, end quote. Helium-3 is a version of helium that people say could be used as fuel for clean nuclear energy. That means no harmful radioactive waste. But we'd still get all this great power. So you don't need much to generate a lot of energy. If you were to have enough helium, about 220 pounds, so that's the weight of a tall person.

11:54So 220 pounds of helium. You bring it all together. You generate energy. It will be enough to light up a city like Dallas for a full year. That's the amount of energy that you have from just 220 pounds of helium. Wow. And that would have no waste, not like the nuclear reactors we have now. No radioactive waste. The beauty of helium-3 is that what is the waste is just helium, the same thing that you put on balloons. Yeah, every one of these nuclear reactors could just be like, hello, hello, we're making clean energy. Yeah, everybody working there will have that type of voice. So, this all sounds great.

12:39You might say, it sounds really, really great. But here's the catch. While it's true that the moon has way more of this special helium than we have here on Earth, if today you went all the way to the moon and grabbed some helium-3, then brought it back, you couldn't use it to power a city right now. And that's because the kind of nuclear reactor that we would use for this stuff, it doesn't exist. Right now, the way that we make nuclear power is by ripping atoms apart and using the energy for power. It's called nuclear fission. But for helium-3, we'd need to do something called nuclear fusion. This is the opposite.

13:24Instead of splitting the atom, you bring two of those atoms together, you fuse them, and that way you generate energy. So to get this helium-3 working, we're going to need to crack nuclear fusion, and we have not cracked that yet. That's exactly right. Scientists and engineers have been working on controlling fusion for years and decades. It's been really hard. It's really hard to get that initial reaction going, that fusing of the elements. I feel like because fusion sounds like fission, you're like, well, you just need to change the I for a U. This is easy. But it's actually like completely different technology.

13:56That's quite a change of a letter. It takes a lot of work. And sure, it's possible that some countries are interested in this because they want to stake their claim on helium-3. like just in case it's useful someday and we can crack nuclear fusion. But I asked Angel. So if someone said to you, say someone big in the White House who has like a massive checkbook and was like, I want to go to the moon for this helium-3, what would you tell them? That we can use that money for something else at the moment. Right. So for now, stripping the moon for parts to use back on Earth, it's not making a lot of sense.

14:43And it is kind of feeling like going back to the moon is more for international bragging rights. But what about this idea that popping back up to the moon could help us get to Mars? That perhaps the moon could be some kind of launching pad that could catapult us into the rest of the solar system? And this idea seems to be what got President Trump on board with the moon several years ago. I said, hey, we've already done the moon. That's not so exciting. They said, no, sir, it's a launching pad for Mars. So we'll be doing the moon, but we'll really be doing Mars. So do we really need to do the moon to do Mars?

15:24That answer after the break. Plus, we'll find out why going to the moon might help us reveal secrets about the universe. Like why you, me, and everything we know... exists at all.

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18:55Welcome back. So, it's looking like the so-called lunar gold rush is more like a lunar gold bust. So, what's the point of going to the moon? Well, some people say that we've got to go back to the moon so that we can get to Mars. And to find out if that's true, we called up Nicole Zelna. She's a professor of physics at Albion College in Michigan. And Nicole is very excited about getting us to the red planet. Well, humans have explored for all of humanity. And Mars is intriguing as just the next step in human exploration. Now, technically speaking, you don't have to go to the moon to go to Mars.

19:43We can fly direct. In fact, that's what Elon Musk is planning to do with SpaceX. But Nicole says that doesn't mean the moon is useless here. NASA released this big report about their plans for the moon, and it actually does have to do with Mars, but not to use it as a launch pad. Their idea is to use it as a training ground for Mars, which Nicole says makes a lot of sense. You're not going to climb Mount Everest on a whim, right? You're going to climb somewhere in the Catskills first, and then you're going to work your way up into higher and higher elevations. You're going to train for that Mount Everest trip.

20:24And you can think about Mars being the Mount Everest for now. This is because Mars is so much further away than the moon. It takes just a few days to get to the moon, but at least six months to get to Mars. If you forget your wrench there, there's no Amazon Prime. Producer Meryl Horne talked to Nicole about it. You're not just going to go there without any practice. That's... It's like a recipe for a disaster. It's a recipe for disaster, yeah. I was going to say it's a fool's errand. I mean, you just don't go somewhere without practicing it first. I mean, that's common sense. Already on Artemis II, they've learned a bunch of things.

21:04The toilet broke and they had to pee in bags at one point. But that got up and running. Mission specialist Christina Cook helped fix it. I'm the space plumber. I'm proud to call myself the space plumber. They've also been a bit chilly on board, and astronaut Victor Glover, the pilot on Artemis 2, said at one point that he'd hoped they'd pack different sleeping bags. It is quite cold, and we're wishing we had the lower-temperature sleeping bags with us. You don't want to be shivering all the way to Mars. And NASA's longer-term plan on the moon is actually pretty fun when you look at the details.

21:43Like I mentioned, in two years, they're planning to put people on the moon. And then in the longer term, NASA is talking about building a lunar base and learning how to deal with the tough conditions that come with being on a whole new space rock. Like, one thing they're going to have to deal with is moon dust. It's like tiny bits of corrosive glass that were a huge pain in the ass for the Apollo astronauts. Nicole told us some of the things they said about it. When I took my helmet off, I was almost blinded. Junk immediately got into my eyes. The dust really bothered my eyes and throat. I was tasting it and eating it.

22:24So when you're in an environment where you can't even go outside without putting a spacesuit on and then you come back inside, you've got dust everywhere, you've got to figure out how to deal with that. And another thing that they'll be dealing with is drinking water. At first, our moonstronauts will get their water from a spacecraft orbiting the moon, kind of like the International Space Station. But it's hoped that these pioneers will ultimately find good water sources on the moon that they could drink and then start to fend for themselves. And eventually, the vision is that if we do find enough water on the moon, maybe we'd use it not just for drinking water, but for something else.

23:07As fuel. To power rocket ships that would venture out into the solar system.

23:16And this isn't totally bonkers. You know, water, even on the moon, is just hydrogen and oxygen. And the fuel that we usually use for rockets now is hydrogen. And we can split apart those water molecules into hydrogen and oxygen. And then that hydrogen can be used as a rocket fuel. Oh, do we have all the science for that yet? We do. Yep, we know how to do this. Plus, having a gas station on the moon would be an added bonus because it would be easier for rockets to take off from around there because they could sidestep Earth's strong gravity. Okay, so it makes sense that you'd want to figure out the nuts and bolts of living on the moon before you live on Mars.

24:03But maybe you're not sold on any of this. Maybe going to Mars just feels like part of the same pissing contest, and it's starting to feel like what we really need is a giant toilet roll on the moon. Well, guess what? We found one. And turns out it's one of the best reasons we've heard to go back to the moon. One of its biggest cheerleaders is Greg Hallinan, a professor of astronomy at Caltech. And he wants to put a telescope on the moon, on the far side, to be specific. That's the side that's always facing away from us. And Greg and his team are so amped about this that they actually named their telescope Farside.

24:46But it's an acronym. Oh, it stands for... Are you looking it up? You can't, I know it up by half. 100 % I am guilty. I have not memorized the horribly forced acronym we have used to name the array Farsight. It is called the Farsight Array for Radio Science Investigations of the Dark Ages and Exoplanets. Wait, what is it again? It's the... Farsight Array for Radio Science Investigations of the Dark Ages and Exoplanets. And remember, the first word of the acronym is the acronym. So how bad an acronym is that? As bad as the acronym is, it's going to look great. Greg sent me a picture. Okay, here we go.

25:31Can you see that okay? Oh, it looks real pretty. It does. It does. So what we're looking at, look, to tell you the truth, is it looks like a real space-age toilet roll a little. Oh, it does. It's got that hole at the bottom. Yeah, that's right. You're right. Yeah, it does. It does. It's very fancy toilet roll. It's gold plate. I don't think it'd feel very good, but it would be very expensive. The plan is that this roll will deploy a giant telescope that will cover an area that's 10 kilometres across. That's over six miles. In my opinion, if we're going to go to the moon, this is why we should go.