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Early Humans Saw Black Hole Light in the Night Sky

By New Scientist
October 2, 2013
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Black hole giant gas bubbles — Did jets from a black hole blow giant bubbles?

Credit: David A. Aguilar/CFA

Some 2 million years ago, around the time our ancestors were learning to walk upright, a light appeared in the night sky, rivalling the moon for brightness and size.

From New Scientist
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