Wow! NASA Rover on Mars Sees Mercury Cross the Sun's Face (Photos, Video)

June 11, 2014 4:57 PM

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NASA's Mars rover Curiosity has photographed Mercury crossing the face of the sun, marking the first time such a planetary "transit" has ever been imaged from the surface of a planet other than Earth.

The Mercury transit photos — which Curiosity captured on June 3 using its Mast Camera (Mastcam) instrument — also represent the first images of the solar system's innermost planet ever taken from Mars, NASA officials said.

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