Company to Settle and Mine Mars

Rutgersen writes "Wired is reporting that a new startup is planning to colonize and mine Mars by 2025. From the article: 'The new company, 4Frontiers, plans to mine Mars for building materials and energy sources, and export the planet's mineral wealth to forthcoming space stations on the moon and elsewhere.'"

Comments

Anyone else notice?

[Gruneun]

On the Bios page, the company's IP attorney is listed before the scientists and advisors.

Maybe, it's nothing.

It's a lot easier on Mars than on Earth

[ChiralSoftware]

Ok, some of the basic steps are the same. Uranium is going to be about 0.7% U235 on Mars, just like it is on Earth, because all the uranium in the solar system was probably formed at the same time, so it has all decayed at the same rate. So you start with the same basic problem: you need to sort out the U235 from the U238. Not easy to do.

But on Mars it's a lot easier than on Earth. First, safety is not as much of a concern. If you have a big radioactive spill on Earth, you've caused a lot of problems. On Mars, well, no one is drinking the groundwater anyway and the whole place is already uninhabited. So that greatly simplifies your factory.

Second, you don't need to run on 100% uranium fuel. Here on Earth, no one wants to generate plutonium for reactors because of proliferation fears (founded or not). On Mars, proliferation is not a concern. Anyone who has the technology to get to Mars should be able to build atomic weapons fairly easily, and atomic explosives will probably be needed for engineering work, so spending time worrying about proliferation on Mars is silly.

The good thing about being free to burn plutonium is that it's easy to make plutonium from the left-over depleted uranium. All you need is a big neutron flux, pump that through the depleted uranium, and you get plutonium fuel.

What this means is that on Earth, you need to mine 140 tons of uranium metal to get one ton of U235, which is the only kind that works as fuel. On Mars, you mine 140 tons of uranium metal, extract the 1 ton of U235, and use that to convert the remaining 139 tons of U238 to plutonium. We can't do that on Earth for political / military reasons, but we can do it on Mars.

So yeah, many of the same problems remain, but the whole process of going from uranium ore to energy would be a lot simpler on Mars.

Once you have a basic reactor going (enough to generate fuel) you can start lifting your raw uranium ore into Mars orbit. It's a lot easier to get off the surface of Mars than it is to get off of Earth. Then you refine it in orbit, where you can be as unsafe and messy as you want, you blast all the waste products into the sun, and you send back down your refined U235 or plutonium fuel rods.