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Space.com on MSN21h
The sun just leaked a huge amount of helium-3 — the rare isotope scientists want to harvest on the moon
This isotope is found at a ratio of about one per 2,500 helium-4 ions, the latter being the common version of helium.
Space.com on MSN18h
Private probe will refuel Space Force satellites high above Earth on landmark 2026 mission
Launch is scheduled for summer 2026. Astroscale's 660-pound (300 kilograms) APS-R Refueler spacecraft will head for the ...