There are only a hundred or so Martian meteorites on earth and scientists have found one that's unlike anything they've seen before. Its official name is NWA 7034, but scientists have nicknamed it Black Beauty. The baseball-sized meteorite, found in the Saharan desert in 2011, has turned out to be one of the biggest finds ever from the Red Planet, opening a whole new window on Mars. Astrophysicist Ian O'Neill is a space science producer at Discovery News.
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