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Tarantula Lobbyist
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"Once every 50 years, more or less, a massive star explodes somewhere in the Milky Way. The resulting blast is terrifyingly powerful, pumping out more energy in a split second than the sun emits in a million years. At its peak, a supernova can outshine the entire Milky Way.

It seems obvious that you wouldn't want a supernova exploding near Earth. Yet there is growing evidence that one did-actually, more than one. About 10 million years ago, a nearby cluster of supernovas went off like popcorn. We know because the explosions blew an enormous bubble in the interstellar medium, and we're inside it."

from: Evidence for Supernovas Near Earth - NASA Science


Also: Solar system in big gas bubble, scientists corroborate - CNN.com
 

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Guiterrorizer
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15,696 Posts
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Huh. Gonna need to read up on that!
 
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