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  • Jovian Moons
    Jupiter's four largest moons were discovered by Galileo in 1610. Three of them might hold oceans of liquid water beneath their icy exteriors. Liquid water is a prerequisite for life.
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  • Earthshine
    When the crescent moon is just a sliver each month, the phrase--'old moon in the young moon's arms'-- poetically describes a marvel of nature.
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  • News_Image_41
    Carbonaceous chondrite meteorites contain vital clues to the evolution of carbon compounds in our solar system preceding the origin of life.
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  • The Heat is On: Asteroid Belt Found around Nearby Star
    When unusually warm dust was first discovered around a nearby star, called zeta Leporis, infrared astronomers began hunting in detail for the heat source.
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  • Do We Know What Killed the Dinosaurs?
    What killed the dinosaurs? Many geologists and paleontologists now think that a large asteroid or comet impacting the Earth must have caused a global catastrophe that led to this extensive loss of life.
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  • From Lightbulbs to Life
    A one-celled organism that lives in deep-sea volcanic vents has developed an alternative metabolism that uses tungsten - an element popularly used to make lightbulb filaments.
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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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  • The Oldest Life on Land
    Fossilized remnants of a microbial mat provide evidence that life existed on land as early as 2.6 to 2.7 billion years ago. The findings suggest that an oxygen atmosphere and a protective ozone layer were in place around Earth by that time.
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  • Warm-nosed Robot Breaks the Ice
    An adventurous science team recently returned from deep Norwegian glacial fields, having tested an instrument which may be used to explore areas beneath frozen surfaces of other worlds.
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  • Evidence of bacteria on Europa?
    Jupiter's moon Europa is thought to be one of the most likely abodes for microscopic life in our solar system. The ice-covered world may have liquid water, energy, and organic compounds - all three of the ingredients necessary for life to survive.
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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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  • Genetic Alchemy: Turning Lobsters into Fruit Flies
    Biologists at the University of California, San Diego, now have genetic evidence that explains how such drastic alterations to body plans were able to occur during the early evolution of animals.
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  • The Three Domains of Life
    When scientists first started to classify life, everything was designated as either an animal or a plant. But as new forms of life were discovered, the original classification was not sufficient enough to organize the diversity and complexity of life.
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  • Life without Volcanic Heat
    An 18-story undersea vent off the Atlantic, near what has been called the 'Lost City', has recently revealed itself as ripe with exotic microbial life.
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  • Europa: Chewy or Crunchy?
    For geophysicist William B. Moore, the question of whether life exists on Jupiter's moon Europa boils down to whether the moon's center is chewy or crunchy.
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