Swooping by at an altitude of just 141.7 miles, images from MESSENGER'S third flyby of Mercury this week are now being posted. The surface in the lower right corner of this image is near Mercury's terminator, the line between the day and night side of the planet.
The craft will settle into orbit around Mercury beginning on March 18, 2011.
Wayne
Credit: NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
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