Exobiology
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ScienceThe quest for signs of ancient life on Mars received a major boost today after NASA revealed that its Curiosity rover has found signs of organic molecules that date back at least three billion years.
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We may be more alone in the Universe than we realize. According to Cardiff University astronomers, the chemical element phosphorus is abundant on Earth, but may be very rare outside of our Solar System. Because phosphorus is essential to life, it's rarity may mean that life may be equally rare.
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To find out what life might be like on a TRAPPIST planet, we contacted Lisa Kaltenegger and Jack O'Malley-James at the Carl Sagan Institute at Cornell University and asked them One Big Question: "What could life in the TRAPPIST-1 system be like?"
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ScienceCuriosity's soil sample analysis reveals no surprises.