Will Earth Appear Habitable to Alien Astronomers? --NASA: "Ocean Glint May be a Clue" | Ciencia-Física | Scoop.it
From www.dailygalaxy.com - July 5, 2014 2:48 PM
 
 
If an alien astromer was viewing Earth from space, could they tell that this planet is well-suited for life? Are there telltale signatures in the atmosphere or from our oceans?