Topics » Science & Technology   Aug. 2, 2012

Robots and Rovers and Mars Revisited

Salmon Sky

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Viking Landers Salmon Sky Speckled Dirt Pathfinder Meteorite Lands on EarthSpirit Opportunity Charges Ahead Curiosity Takes the Baton

Salmon Sky

They took pictures... like this boulder-strewn field of red rocks, taken from Viking 2 on Mars' Utopian Plain. Scientists believe the salmon color of the sky is caused by dust particles suspended in the atmosphere.

Photo Essay

Photo Essay