A false-color image of an unrelated supernova remnant, G292.0+1.8, taken by the Chandra X-ray telescope. | NASA/CXC/SAO

Supernovas Blasted Prehistoric Earth With Radiation

High-energy cosmic rays could have boosted radiation in our atmosphere, causing problems for Earth life millions of years ago.

Published On 07/13/2016
1:41 PM EDT
Artist's impression of cosmic rays, which usually originate from outside the solar system, entering the heliopause (the sun's region of influence). | Credit: NASA/Goddard Space Flight Center, Conceptual Image Lab