SPACE PHOTOS THIS WEEK: Baby Star, Crescent Earth, More

SPACE PHOTOS THIS WEEK: Baby Star, Crescent Earth, More
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November 17, 2009--Combined pictures show two visions of Mercury: how the tiny planet would appear to the human eye (left) and how it would look if all the subtle color differences were enhanced in shades of blue and gold.

During its third and final flyby of Mercury, the MESSENGER spacecraft captured some sections of the innermost planet never seen before by humans, as well as high-resolution closeups of interesting features. For instance, zooming in on a large ringed basin--seen in dark blue at the top of the colorized picture--revealed some of the most recent volcanic activity known to have occurred on Mercury.
—Image courtesy NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington
 
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