13 points

With Blackjack! And Hookers!

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5 points

Actually, forget the nuclear reactor and Blackjack!

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4 points

Ehhh, screw the whole thing

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1 point

Don’t forget the blow!

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38 points

New Space Race while Americans just want healthcare.

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38 points

I would settle for no fascism/the supremecist court to pull its head out of billionaires’ assholes

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4 points

Look on the brightside: you can either have no healthcare and no space race or no healthcare and a space race.

Sure you are going to spend your last years dying of a preventable diabetes complication, but at least you get to see cool stuff going on. Instead of dying the same way anyhow and not seeing cool stuff.

If you other people could vote I would really appreciate it.

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2 points

Why not both?

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2 points

Them: We’re gonna put a nuke plant on the moon
Sane people: How are you going to get power back to Earth?
or: why?
Them: Did you know we’re gonna put a nuke plant on the moon?

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9 points

The idea is not to get the power back to earth, but to have power on the moon. Without power, you’ll never have humans living there.

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1 point

Lasers. It will be powering their orbital laser platform.

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1 point

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1 point

lmao

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46 points

Strange that the article would say that when, in point of fact, the US is also working plans for lunar nuclear power. It’s really the only sensible way to power a moon base with current technology, so anyone who is considering one is working designs for a nuclear power plant.

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1 point

Is solar power combined with battery storage not an option?

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4 points

Not really. Current battery technology is to put it lightly not the type of thing you want to rely on for long term life support. Lithium ion the current go to for rechargeable batteries physically degrades as you charge it. One of the main things you can do to reduce this is don’t fully charge the battery. For example if the battery degradation from 0%* to 100%** is a cycle then 50% to 80% is only 21% of a cycle. That’ll extend the lifetime of the battery (not the capacity) by about 5 times! That’s pretty significant but you lose out on 20% of the batteries capacity permanently, even as the capacity decreases from degradation.

You’ve probably seen the hype about Sodium batteries which are currently 50% less energy dense which just immediately means NOPE for use in space.

* Lithium ion batteries are extremely difficult to actually fully discharge (controller won’t let you)

**Lithium ion batteries should never be fully charged it causes them excessive damage so the controller prevents this from happening

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0 points

They do it on the ISS though?

Although Li-Ion batteries typically have shorter lifetimes than Ni-H2 batteries as they cannot sustain as many charge/discharge cycles before suffering notable degradation, the ISS Li-Ion batteries have been designed for 60,000 cycles and ten years of lifetime, much longer than the original Ni-H2 batteries’ design life span of 6.5 years.

Electrical system of the international space station, batteries

Also related:

Peak of eternal light, Lunar North Pole

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2 points

Much less power for the weight, and weight is the big deal when you’re sending things from earth.

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10 points

How do you cool a nuclear reactor on the moon?

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4 points

It’s already pretty cold

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8 points

Only at night.

The lunar exosphere is too skimpy to trap or spread the Sun’s energy, so differences between sunlit and shadowed areas on the Moon are extreme. Temperatures near the Moon’s equator can spike to 250°F (121°C) in daylight, then plummet after nightfall to -208°F (-133°C).

https://science.nasa.gov/moon/weather-on-the-moon/

Which sounds like a pretty big challenge for a nuclear reactor. Maybe they only plan to put them on the poles?

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19 points

The big problem with space is overheating. Space may be cold but there is no way to get rid of that heat except for radiators. Convection doesn’t exist in a vacuum.

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1 point

Heat also dissipates via radiation, not just conduction. I would imagine that nuclear power on the moon won’t involve hauling a lot of liquid coolant/heat exchanger/energy transfer because liquids are wicked heavy, hauling that up to orbit and then landing it is gonna take a lot of energy. They do acknowledge that cooling is an issue they’re working on.

Maybe some kind of RTG? I couldn’t find an article that said what the NASA contractors chose to build.

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4 points

No, RTGs just don’t generate the kind of power you’d need. I mean, they’re awesome for generating electricity for a long time, but just not a lot of it. No, these are fission plants.

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2 points

That’s a challenge that people are working on for sure. Likely some kind of radiant cooling, but it’s a lot of heat.

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5 points

The ground would probably work fine as a heat sink.

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3 points

That was my first thought, but then my second thought was even more terrifying - how do you protect your nuclear power facility from celestial impacts? The moon must get pelted with thousands of little bits of space debris every day considering it has no atmosphere. All it would take is a basketball-sized meteorite to slam into the reactor chamber and possibly cause a meltdown.

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2 points

Cover it with a ton of moon soil

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3 points

Go Thorium MSR and bury it underground and you don’t really have to worry about it. Might need some modification for moon gravity but otherwise seems like the best bet.

https://www.thmsr.com/overview/

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