• The Cambrian Explosion: Tooth and Claw
    Scientists ponder the causes of the Cambrian explosion.
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  • Pregnancy Test for Mars
    The test that tells women they are pregnant might also be able to find signs of living organisms on Mars.
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  • Titan: Biological Birthplace?
    Saturn's giant moon Titan, cloaked in thick nitrogen atmosphere with hydrocarbons, provide a laboratory in sky for scientists.
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  • Bugs From Hell
    Geochemists and microbiologists are delving into the details of extreme biochemistry deep within the Earth, where chemical and metabolic processes go at glacial pace, and life appears to be completely disconnected from the photosynthesis-based biological cycles that dominate surface life.
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  • Bugs From Hell
    Geochemists and microbiologists are delving into the details of extreme biochemistry deep within the Earth, where chemical and metabolic processes go at glacial pace, and life appears to be completely disconnected from the photosynthesis-based biological cycles that dominate surface life.
    more...
  • Titan: Biological Birthplace?
    Saturn's giant moon Titan, cloaked in a thick nitrogen atmosphere laced with hydrocarbons, could provide a laboratory in the sky.
    more...
  • A Pregnancy Test for Mars
    The test that tells women they are pregnant might also be able to find signs of living organisms on Mars.
    more...