Ancient Cosmic Explosions May Have Impacted Evolution [cheapestps3controller269.blogspot.com]

Ancient Cosmic Explosions May Have Impacted Evolution [cheapestps3controller269.blogspot.com]

Millions of years ago, a pair of exploding stars showered our planet with radioactive fallout. Had those supernovae popped off a bit closer to home, Earth’s biosphere would have been toast. But even at a distance of 300 light years, the stellar events might have had an impact on the evolution of life here.

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http://gizmodo.com/ancient-cosmic-explosions-might-have-impacted-evolution-1783487668 Ancient Cosmic Explosions May Have Impacted Evolution

[cheapestps3controller269.blogspot.com] Ancient Cosmic Explosions May Have Impacted Evolution