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Hope, Not Evidence, Drives Astrobiology

Earth-size exoplanets are not evidence for alien life. They are evidence for orbiting bodies.

Life from Sun Flares?

A NASA scientist proposes that a period of superflares on the early sun zapped life into existence on the earth.

You Wouldn't Want to Live on "Earth's Cousin"

Despite the hype about another Earth-like exoplanet, Kepler 452b would not be as habitable as Venus.

Physical and Geological Hurdles on the Darwinian Race

Can the smooth big-bang-to-brain story of evolution jump the physical and geological hurdles along the way?
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