The sun just leaked a huge amount of helium-3 — the rare isotope scientists want to harvest on the moon The sun was caught bursting out a huge quantity of helium-3, an isotope that's scarce in our solar system. Astrobitica April 11, 2025 (Last updated: April 11, 2025) 1 minute read The sun was caught bursting out a huge quantity of helium-3, an isotope that’s scarce in our solar system. About the Author Astrobitica Administrator Visit Website View All Posts Post navigation Previous: 5 Simon Stålenhag art books to check out after you’ve watched ‘The Electric State’ on NetflixNext: A gravitational war next door: The Large Magellanic Cloud is gradually destroying the Small Magellanic Cloud