Gamma Rays Flood Earth from Distant Galaxy –“Traveled Half the Age of the Universe” -CfA

ourhomeplanet

In April 2015, after traveling for about half the age of the universe, a flood of powerful gamma rays from a distant galaxy slammed into Earth’s atmosphere. That torrent generated a cascade of light – a shower that fell onto…

from The Daily Galaxy –Great Discoveries Channel: Sci, Space, Tech http://ift.tt/1k2xmMn
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I'm presently a student of life who is trying to figure out the mysteries of the universe. Any hints anybody?

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