Questions tagged [helium-3]

Questions about the light isotope of helium not found in any significance on Earth, described as a potential source of nuclear fusion fuel on the Moon and other celestial solar system bodies.

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Why exactly would “permanently shadowed polar lunar craters… have substantially higher levels of ³He than sunlit lunar surfaces?”

Researching this answer led to ³He in permanently shadowed lunar polar surfaces published in Icarus. The abstract is tantalizing but terse: Abstract Because of their cryogenic temperatures, ...
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1answer
73 views

How long does it take to refresh helium-3 on the moon?

I was reading a science-fiction novel, Limit, by Frank Shätzing. It depicts a near-future with useful helium-3 fusion, and the Americans and Chinese are bumping elbows mining helium-3 on the moon, ...
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4answers
606 views

Would it be more viable to process moon rocks into Helium-3 on the Moon than doing so on Earth?

Helium-3 is a substance that is very useful for nuclear fusion, which can generate a lot of power. Unfortunately we don't have a lot of it on Earth, but on the Moon it can be processed from basic moon ...
19
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430 views

Are there proven sufficient $^3\text{He}$ reserves in the inner Solar System to sustain fusion reactors for colonisation?

According to the NASA website Energy from the Moon, that assuming we perfect the helium-3 ($^3\text{He}$) nuclear fusion technology required, that $^3\text{He}$ would generate only a very slight ...
11
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1answer
952 views

Practical Lunar He-3 mining approach?

There is a lot of popular talk that There may be huge deposits of Helium-3 on the Moon, and It could be used for very efficient fusion reactors. Unfortunately in the bulk of popular talk actual ...