Nasa rover finds 'bulletproof' evidence of water on Mars
A Nasa rover scouting for signs of past water on Mars has found the strongest evidence yet - a vein of gypsum, more commonly known as plaster of Paris, a mineral deposited by water.
Nasa scientists say that the results 'just scream water'. The vein would have been deposited by water flowing through a fracture in the rock.
Nasa scientists have anticipated results ever since Opportunity reached the 14-mile Endeavour crater, which has older exposed rocks than any craters the Rover has seen in its seven-year mission.Read more: http://www.dailymail.co.uk/sciencetech/article-2071988/Mars-w...