"How many years would a radio signal from earth take to reach the Andromeda galaxy?"
Content with the tag: “extremephiles”
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Deep Hydrogen
Molecular hydrogen provides energy for many bacteria, in hot springs at Yellowstone and in rocks several kilometers beneath the surface. How did molecular hydrogen get inside these deep rocks, and what does this tell us about the origin of life on Earth?
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June 16, 2008 / Written by: David Tenenbaum
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