Earth-like Planets Need a Cosmic-Ray Bath

Earth-like Planets Need a Cosmic-Ray Bath
By Brian Koberlein (https://ift.tt/pCY2Gh8)

Terrestrial planets such as Earth need an early solar system rich in short-lived radioisotopes. But the supernovae that create these elements would tend to rip an early system apart. A new study suggests that these isotopes are produced by a bath of cosmic rays from more distant supernovae.

January 3, 2026 at 11:18PM
via read more...