Totally went down a bunch of research holes after watching today's flawless Artemis II launch. There's probably a better, more complete video explaining what helium-3 is, why it's so rare and valuable...
@nprofile1q... he-3 is the best fusion fuels.
God I hate these slides, but the content is salient
https://ocw.mit.edu/courses/22-012-seminar-fusion-and-plasma-physics-spring-2006/e2e8eb876c7ec0dff934149b83f8c3fa_helium3_fusion.pdf
God I hate these slides, but the content is salient
https://ocw.mit.edu/courses/22-012-seminar-fusion-and-plasma-physics-spring-2006/e2e8eb876c7ec0dff934149b83f8c3fa_helium3_fusion.pdf