Hope, Not Evidence, Drives Astrobiology
August 25, 2016
Earth-size exoplanets are not evidence for alien life. They are evidence for orbiting bodies.
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Life from Sun Flares?
May 23, 2016
A NASA scientist proposes that a period of superflares on the early sun zapped life into existence on the earth.
Physical and Geological Hurdles on the Darwinian Race
March 7, 2015
Can the smooth big-bang-to-brain story of evolution jump the physical and geological hurdles along the way?
Doomed Worlds: Planets Seen Disrupting, Not Forming
May 23, 2012
Much as astrobiologists would like to see the birth of a new planet, the ones we observe seem to be dying, not being born.