MarsDial

The MarsDial is a sundial that was invented for missions to Mars. It is used to calibrate the cameras of Mars landers. MarsDials were placed on the Spirit and Opportunity Mars rovers.

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The MarsDial was invented by Bill Nye the Science Guy and Steve Squyres.

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• The Planetary Society's news page covering the MarsDial

Sundial: :This article pertains to the astronomical instrument. For the psychedelic rock band, see Sun Dial....

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