mrt 132013
 
Conditions on Mars Once Favorable for Life

  An analysis of a rock sample collected by NASA’s Curiosity rover shows ancient Mars could have supported living microbes.   Scientists identified sulfur, nitrogen, hydrogen, oxygen, phosphorus and carbon — some of the key chemical ingredients for life — in the powder Curiosity drilled out of a sedimentary rock near an ancient stream bed [continue reading]

jan 212013
 
Martian Crater May Once Have Held Groundwater-Fed Lake

  A NASA spacecraft is providing new evidence of a wet underground environment on Mars that adds to an increasingly complex picture of the Red Planet’s early evolution. This view of layered rocks on the floor of McLaughlin Crater shows sedimentary rocks that contain spectroscopic evidence for minerals formed through interaction with water. Image Credit: [continue reading]