Welcome to the Planetary News Radio Episode 11 with your host Bryan White. Today I’m going to do a Science in the News segment, and then I’ll talk briefly about some of the other projects going on with the Planetary News and a little bit about how to help support this podcast to keep it advertising free. Well, let’s get into the Science in the News segment. So again, just briefly, I’m looking at trending articles and science from various sources, and I haven’t really researched them a lot. I’m mostly just looking at the headlines and trying to understand what’s going on in the world and kind of get a sense for the pulse of science news.
And so let’s look here, Number one, “Trump prompts state of confusion over space policy with tweet”. So this is kind of funny, but it makes sense to me. I see where the confusion is. Trump actually tweeted, [paraphrasing], “That the moon is a priority. We shouldn’t be wasting time on Mars”, or something like that. But then he said, “the Moon is part of Mars” and as out of context as silly that sounds, I actually see where the confusion is from that tweet, and it’s actually not that wrong. What Trump should have said is that the development of technology and systems for travelling to Mars are also part of the development of the systems and technology for traveling to the Moon. So if we develop systems for traveling to the moon, we’re also developing systems to travelling to Mars. And that’s an important point because NASA had to make a decision on what to focus their resources on. As much as everyone would love to colonize Mars and the Moon, we have to choose one [first] because resources are limited. And so NASA’s made the decision that we will return humans to the moon first. That will be the priority.
But at the same time, this is going to help with future missions to Mars. And why So one of the things is is that NASA’s gonna be creating a new space station. So an orbital platform for sending astronauts to the moon. So now you have the Apollo missions. Historically, astronauts are restricted to launching on a rocket one way rocket, now breaching orbit, going straight to the moon. Now, with an orbital stop point, you could have a one rocket designed to exit the earth’s gravity, which is a very different process from actually just traveling across space to the moon. And so you can have the second stage of the Moon plan waiting in orbit or the second stage can be refueled. So if you can send fuel to orbit in multiple stages, you can accumulate more fuel in orbit. And then you don’t have to have everything packed on one trip on one rocket, because exiting your gravity is extremely challenging, extremely expensive, so every pound could cost thousands of dollars to get into orbit.
Having a stop point in low earth orbit on the way to the moon, it is a really good idea. And since the International space station is going to be decommissioned, it doesn’t make sense to continue adapting that. And so hopefully this new effort to build a Moon station will continue on to the building of another space station and that station will be used for future Mars missions. So, as silly as it is, what Trump said sounds silly, it’s actually fairly accurate. The mission to the Moon is part of the mission to Mars.
All right, so next up, speaking of the International Space Station (ISS), NASA and its international partners have been struggling to figure out what to do with it. What they’re saying is that NASA will open up the space station [to private tourism], and this has been talked about for a while. This is the first official announcement that NASA will open up the station to private visitors, and so they can pay cash to go visit the International Space Station. That’s great, because then if you could have enough visitors going to the International Space Station, it could support itself. NASA could afford to maintain it and then that station and another space station. The plan is to decommission the ISS by 2025 or something like that. But if it were to become profitable or break even in terms of funding and that funding came from private individuals or institutions, then I don’t see why the station would be decommissioned. And so then we’ll have NASA itself funding a Moon station in orbit, and then we’ll have the International Space Station still hanging around, so maybe we’ll have to space stations in the next 10 years, so that’s good.
A real quick astronomy note is that Jupiter will be the closest to earth it has been in some time, and so this week is a great week to see Jupiter and its Moons, or at least four of its Moons will be visible. Not necessarily to the naked eye but visible, using low magnification like binoculars or something like that. So I’m excited about that. Hopefully there is clear weather.
Here’s a headline from NBC News. Three islands disappeared in the past year. Is climate change to blame? Well, I don’t know because I didn’t read the article, but let’s think about Could that be the case? Could climate change cause an island to disappear? And the answer is yes. That is entirely possible. For a couple reasons, one would be raising water levels so the water gets hired. But there’s a lot of other forces, too, that cause islands to disappear. So erosion forces and things like that changing can suddenly transform an island that might have been growing, adding sand, actor and soil. So all of a sudden, fading away losing sand and all of these things can be influenced by climate. So again, I’m not looking into that. Too much more of us. Looking at the headline saying that sounds plausible. [In this case, it looks like sea-level rise is the most likely culprit].
There’s an exciting headline: “Incredible Pictures of NASA approved 3D homes to be built on Mars before humans arrived”. So again, back to the Moon/Mars controversy. One of the problems with getting to Mars is resource is resource transfer. Mars is a lot farther away so it’s a lot more expensive to carry materials with you. If colonists arriving on Mars could fabricate their own living structures from natural resource obtained on Mars, then that would free up a lot of space on the spaceship to bring them to Mars. In other words, if you can build your home when you get there, you don’t need to bring your home with you. And so that’s why a lot of colonization research is going into 3D printing. So if we could build homes or any type of structure, a greenhouse [for example], the ability to fabricate structures on Mars would be great, and I’m assuming that this will be tested on the Moon first. So as part of NASA’s “Moon first” plan hopefully we’ll see a 3D printer on the Moon.
Like I said, [in the Science in the News segment], I’m just looking at headlines. The reason why I do this is because here is a trending article that appears to be fake news. “Alien life search bombshell exo-moons may be home to extraterrestrial life”. So first of all, I wouldn’t call that a bombshell because the idea that any exo-planet or exo-moon could house life has been a major component of astrobiology for 30 or 40 years, since the first exo-planets were discovered. Scientists have always thought it possible that if there is alien life, either microbial or other, that it could possibly exist in a planet that is in the habitable zone.
In other words, if the planet is not too close to its star, has the right temperature for organic synthesis to occur, and has some solvents like water or ammonia, then it’s entirely plausible that life could exist. Now, that’s my criticism here: [the wording of the headline]. This headline is “Alien life search bombshell”. Not really a bombshell. The problem with exo-moons and exo-planets is that even if they did have life on it, how would we know? So we’d have to find a way to detect the signature of life on a planet only from its atmosphere, because that’s all we can really see from a telescope. So these planets are many light years away, typically so we can’t visit them and see if there are living organisms there. So we need a system to detect the signature of life from a telescope.
And there’s some work that’s been done on that because we know if we were to point a telescope at earth, what would we look for? Could we determine that Earth had life if we were pointing to telescope at Earth from a light year away? And so, yes, we do know there is some signatures we can look for, like really high oxygen content in the atmosphere would be a suggestion, but again, we won’t be able to confirm that [with physical data]. In our lifetimes, we’ll never be able to confirm that [because of the extreme distance of even the closest exoplanet, which is over 4 light years away]. So that’s why this title, I think, is a little disingenuous and so I’m calling out this article. I’m not naming it, just calling out the headline as [potential fake news].
And so that’s it today for the Science and the News segment. I’ll just talk real quick about one of the other projects I’m starting, which is the Planetary Information Engine (PIE), which is sort of like a three stage process. It’s beginning as a wiki, and so the wiki is going to be constructed to gather scientific knowledge, kind of like an encyclopedia, but a more directed encyclopedia – a little less free-form than Wikipedia. [It will have] more structure towards natural language processing (NLP). And so the idea is that an information engine is something that could be used by an artificial intelligence system to augment your own intelligence or a person’s own intelligence. And so that’s the [new] project I’m starting as well, the Planetary Information Engine, and I’ll have more about that as I get further along.
Hope you enjoyed this podcast. That’s Bryan White with the Planetary News signing out.
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