Since 1976, the U.S. Ansmet program has collected nearly 20,000 meteorites from Antarctica. The 35th expedition — a joint venture of the National Science Foundation, NASA and the Smithsonian Institution — launches this week. The collected space rocks provide insights into the formation of the sun, the Earth, the moon and the rest of the solar system. Read related article.

Sources: USGS and British Antarctic Survey | Laris Karklis and Brian Vastag - The Washington Post December 4, 2011
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