All Life on Earth Comes from Alien Zombies (RT @Wired)


Thu, Nov 11th, 2010 20:00 by capnasty NEWS

Among the many speculations to explain the rise of life on Earth, scientists have theorized that the seeds could have come from space -- a notion called panspernia -- either from a comet or meteor. Others have suggested that tiny organisms could cross the galaxy embedded in dust grains, which could be nudged from one planetary system to another by the slight pressure of stars' radiation; however, regardless of the transit system, space radiation, argue astrobiologists, would kill delicate microbes essentially preventing panspermia in the classical sense.

Astronomer Paul Wesson, a visiting researcher at the Herzberg Institute of Astrophysics in Canada, doesn't think so. In an upcoming paper in Space Science Reviews, Wesson argues that although space radiation would mean the microbes are dead on arrival, the information they carry could allow life to rise from their charred remains. He calls this idea necropanspermia.



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