Topic: Washington University In St. Louis

New Mars samples 'unlike any seen before'

A new site being explored by the Mars rover Opportunity has yielded soil samples unlike any examined before on the red planet and that appear more favorable for life, scientists said.Opportunity, the indefatigable robot that has been exploring Mars for seven and ...
Such an atmosphere should have led to the formation of outcrops rich in carbonate minerals, for which evidence has been sparse. Using the Mars Exploration Rover Spirit, we have now identified outcrops rich in magnesium-iron carbonate (16 to 34 weight percent) in ...