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Future rockets could be powered by high-energy biofuel from engineered bacteria
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Robotic planet-hunting telescope makes its debut, already spots new worlds
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Shrinking size of North American salamanders linked to climate change
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Sunsets painted by famous artists may offer clues to past pollution in Earth's atmosphere
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Humans leaving "technofossil" evidence of our impact on planet Earth
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Astronomers urged to consider more types of stars in search for extraterrestrial life
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Looking to detect a lie? Let your unconscious mind be your guide, scientists say
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Bald eagle egg hatches in Pittsburgh, mommy eagle incubates two more
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Crows as intelligent as a seven-year-old child? Research says 'yes!'
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Lesser prairie chicken classified as 'Threatened,' authorities blame habitat shrinkage
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Mars One plans life-sized Martian habitat on Earth
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Climate change has a $100 bn per year tab for humans says UN panel
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