This image released by NASA shows an enhanced photo image of Mercury from its Messenger probe's 2008 flyby of the planet. NASA says it was a taste of pictures likely to come after March 17, 2011, when the probe enters Mercury's orbit. This photo shows the eastern part of the smallest and closest planet in our solar system. The colors in this picture are different than what would be seen with the naked eye, but show information about the different rock types and subtle color variations on the oddball planet. The bright yellow part is the Caloris impact basin, which is the site of one of the biggest in the solar system. For the first time, Earth has a regular orbiting eye-in-the-sky spying on the solar system's smallest and strangest planet, Mercury. NASA's spacecraft called Messenger successfully veered into a pinpoint orbit Thursday night after a 6 1/2-year trip and 4.9 billion miles and tricky maneuvering to fend off the gravitational pull of the sun. It is the fifth planet in our solar system that NASA has orbited, in addition to the Earth and the moon. (AP Photo/NASA/Johns Hopkins University Applied Physics Laboratory/Arizona State University/Carnegie Institution of Washington)
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