jul 112013
 
How the Early Earth Kept Warm Enough to Support Life

  Solving the “faint young Sun paradox” — explaining how the early Earth was warm and habitable for life beginning more than 3 billion years ago even though the Sun was 20 percent dimmer than today — may not be as difficult as believed, says a new University of Colorado Boulder study. An artist’s conception [continue reading]

jun 022012
 
A Hypothesis for Faint Young Sun Paradox

  More than 2 billion years ago, a much fainter sun should have left the Earth as an orbiting ice ball, unfit to develop life as we know it today. Why the Earth avoided the deep freeze is a question that has puzzled scientists, but Purdue University’s David Minton believes he might have an answer. [continue reading]