Mars Rovers Spot Water-Clue Mineral, Frost, Clouds

2004

Scientists have identified a water-signature mineral called goethite in bedrock that the NASA's Mars rover Spirit examined in the "Columbia Hills," one of the mission's surest indicators yet for a wet history on Spirit's side of Mars.

             
This view is the product of a technique called super resolution.
This view is the product of a technique called super resolution.