Mercury                                                     Web-Science.net
Credit: Mariner 10, NASA (1974 mission)
Mercury, the closest planet to our Sun, shows a heavily cratered surface.

Diameter: 4,880 kilometers
Orbit:  57,910,000 kilometers
Atmosphere: Very little; formed by atoms blasted from the surface by the solar wind.
Surface Temperatures: Sunside: 400 degrees Celsius
                 Darkside: minus 180 degrees Celsius


Credits: apod.nasa.gov/apod/ap040912.html
www.nineplanets.org/
Mercury
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Mercury by Mariner 10
Credit: NASA
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