The sun was caught bursting out a huge quantity of helium-3, an isotope that's scarce in our solar system.

The sun just leaked a huge amount of helium-3 — the rare isotope scientists want to harvest on the moon

Source: space
Source Link: https://www.space.com/the-universe/sun/the-sun-just-leaked-a-huge-amount-of-helium-3-the-rare-isotope-scientists-want-to-harvest-on-the-moon