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China discovers unknown mineral on the moon, names it Changesite-(Y)

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There is not a lot of helium-3 in lunar regolith (which is just the surface layer, and is the only layer that contains any at all) - it's in the tens of parts per billion at best. That means collecting and processing billions of tons of regolith for a few measly tons of helium-3, which isn't all that useful outside some niche extreme cryogenic applications. It's not a worthwhile fusion fuel - it produces less energy per fusion event than standard D-T fusion, and would be quite difficult to ignite and sustain (we don't yet know the Lawson Criterion (difficulty to ignite) for 3He-3He, but we do know it for D-3He and it's 16 times harder to ignite than D-T). The sole "advantage" is that 3He-3He is aneutronic, but the neutronic emission from D-T is actually useful for breeding more fuel.

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