Ancient life might have escaped Earth and journeyed to alien stars

A pair of Harvard astrophysicists have proposed a wild theory of how life might have spread through the universe
By Rafi Letzter | space.com |

SPACE.COM - A pair of Harvard astrophysicists have proposed a wild theory of how life might have spread through the universe.

Stephen Kane, an astrophysicist at the University of California, Riverside, told Live Science that he was deeply skeptical of the suggestion that microbes from Earth might have actually turned up alive on alien planets through some version of this process.

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