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How life got started on Earth is still a big problem for scientists. The story goes something like this: "Well, there was this primordial soup of amino acids and stuff, then maybe there was some lightning, or something, and then ::mumble, mumble:: and then we had life." Awkward! But that awkwardness may be over: Research on the Murchison meteor, which landed in Australia in 1969, has found that the rock carried the building blocks of DNA on board. The finding puts panspermia firmly in the spotlight as a possible origin for life on Earth, and makes a lot more sense than that old tale of thunderstorms and arm-waving. More »
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