Topics » Science & Technology   Aug. 2, 2012

Robots and Rovers and Mars Revisited

Speckled Dirt

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

Speckled Dirt

...But they found no signs of life - just lifeless dirt.

"They were going for too much too soon," Steve Squyres told Miles O'Brien.

NASA's Viking 1 Orbiter photographed this region in the northern latitudes of Mars on July 25, 1976, while searching for a landing site for the Viking 2 Lander. The image's speckled appearance is due to missing data, called bit errors, caused by problems in data transmission from Mars to Earth.

Photo Essay

Photo Essay