A U.S. spacecraft beamed hundreds of photos of Mercury back to Earth on Tuesday after a close encounter with the planet closest to the sun.
The images show scientists never-before-seen landscapes on the planet's surface.
Four of the high-resolution images were made public at 10 a.m. ET Tuesday, posted by NASA on its MESSENGER Web site. Taken during a three-hour span before and after the spacecraft's closest approach to Mercury, the photos offer detailed new glimpses of the barren planet.
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Check out these photos of Mercury below. (from NASA)
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