science_spies
@science_spies
Mon, Oct 5, 2020 3:54 PM
We now have proof a supernova exploded perilously close to Earth 2.5 million years ago -
We now have proof a supernova exploded perilously cl...

Physics |
We now have proof a supernova exploded perilously cl...
 https://imgs.plurk.com/Qye/hlL/D8BVtcIjU6Tbixww90JUtD34Y4u_lg.jpg
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