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    A new model suggests that large exoplanets may have both oceans and exposed continents -- conditions that could lead to an Earth-like stable climate.
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    As 2013 draws to a close, Astrobiology Magazine highlights the year's top stories. At number 5 is the discovery of microbial life signs in rocks 3.48 billion years old--possibly the oldest signs of life on Earth. (Originally published on 11/14/13)
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    A new paper reveals how the worst extinction in Earth's history may have been tied to the formation of Supercontinent Pangea. The catastrophe wasn't triggered by an impact from above--unlike another well-known extinction--but by a geological process below, deep within Earth's core.
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    Scientists have found signs of microbial life in rocks 3.48 billion years old--possibly the oldest signs of life on Earth. These sedimentary structures may guide our search for life on Mars.
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  • News_Image_1328
    A new study explores effects of moonlight on nocturnal mammals, and the results could change the way scientsts think about moonlight and predation.
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  • News_Image_1301
    A new paper suggests a large impact in the ocean 570 million years ago caused a re-organization of Earth’s environment, setting the stage for the emergence of complex life.
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  • News_Image_1291
    Researchers have found that, under the right conditions, the yeast S. pombe doesn’t grow old. The discovery provides insight into our understanding of aging, and shows that even some of the best-studied life forms can still have surprising qualities.
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    As the oldest evidence for life in the fossil record, stromatolites provide insights into the early evolution of life on Earth and serve as potential "biosignatures" when looking for life elsewhere. A recent paper highlights a different kind of microbe-created structure similar to stromatolites.
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  • News_Image_1252
    In 2006, a multinational crew of scientists discovered methane seeps in the Pacific that were unlike seeps seen anywhere else. The sites support a unique food web dominated by worms that feed on methane-filtering microbes.
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  • News_Image_1245
    In a discovery that further demonstrates just how unexpected and unusual nature can be, scientists have found two strains of bacteria whose symbiotic relationship is unlike anything seen before.
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