Wednesday, March 13, 2013

Nasa: Rock Shows Mars Life Could Have Existed

Nasa scientists have said analysis of a rock sample collected on Mars shows the planet could have supported primitive life.

Sulphur, nitrogen, hydrogen, oxygen, phosphorus and carbon - some of the key chemical ingredients for life - were discovered in a tiny sample collected by the rover Curiosity after it drilled into a rock.

At a briefing at Nasa's Washington headquarters on Tuesday, experts said the rock contained clay minerals that formed in a watery environment that may have been favourable for microscopic organisms.