(AP) – This image provided by NASA, shows a image NASA’s Messenger probe made when it flew by Mercury in September 2009. It’s a close-up of its pockmarked southern hemisphere, an area that had never been seen before. Messenger will enter into Mercury’s orbit on March 17, 2011. Earth is about to get better acquainted with its oddball planetary cousin. (AP Photo/NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington)

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(AP) – This image provided by KSWB-TV shows San Diego County Sheriff Bomb Squad officers at the site of a discovery of explosive material inside a home Wednesday, Nov. 24, 2010, in Escondido, Calif. The officers also seized evidence that suggested use for armed robberies. (AP Photo/courtesy of KSWB-TV) NO SALES

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(AP) – This undated handout image provided by the Census of Marine Life shows, the acantharians are one of the four types of large amoebae that occur in marine open waters. Their fragile skeletons are made of a single crystal of strontium sulfate that quickly dissolves in the ocean water after the cell dies. If the Census Bureau thinks it has it;s hands full counting Americans, imagine the problems of scientists trying to tally everything living in the oceans, including microbes so small they seem invisible. (AP Photo/Bob Andersen and D. J. Patterson, Census of Marine Life)

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