How fast is Greenland's ice sheet melting in response to climate change, and how is it recovering? A new NASA…
[/caption] Sealed off for millions of years beneath an almost impenetrable layer of ice, Lake Vostok has kept a vast…
[/caption] In a study led by the University of Colorado Boulder with co-authors at the National Center for Atmospheric Research…
Mars is a dead world, unchanging for billions of years. Right? Maybe not. Researchers from Brown University have found evidence…