New study dramatically changes where we believe aliens might live

A team of astrobiologists has redefined conventional notions of where life can exist within a solar system. They've suggested that life could exist inside planets with inhospitable surfaces. Dubbed "subsurface habitable zones," this new definition of habitable zones means that alien life may be far more prevalent than… » 1/13/14 12:20pm 1/13/14 12:20pm