Mars

    • Mars: Dead or Alive?
      Recent research on the planet has convinced some scientists that Mars may still be geologically active.
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    • 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.
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    • Swept Away: Evidence of Erosion on Mars
      Massive erosion shaped the surface of Mars, according to planetary scientists at Washington University in St. Louis.
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    • Mars Odyssey Finds Large Water Concentrations
      Early results from the Mars Odyssey orbiter show the signature of large water concentrations.
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    • Growing Glowing Martian Mustard
      A team of University of Florida scientists has genetically modified a tiny plant to send reports back from Mars in a most unworldly way: by emitting an eerie, fluorescent glow.
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    • Growing Glowing Martian Mustard
      A team of University of Florida scientists has genetically modified a tiny plant to send reports back from Mars in a most unworldly way: by emitting an eerie, fluorescent glow.
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    • Space Weather on Mars
      Future human explorers of Mars can leave their umbrellas back on Earth, but perhaps they shouldn't forget their Geiger counters! A NASA experiment en route to the Red Planet aims to find out.
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    • Roses for the Red Planet
      Scientists discuss the importance and the possible risks of seeding the Red Planet.
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    • Life’s Chemical Fingerprints
      Using a technique called Raman spectroscopy, researchers are developing instruments that may one day search for life on Mars, Europa, or Callisto.
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    • Return to the Red Planet
      On Saturday, April 7, NASA's next mission to Mars is set to launch. The 2001 Mars Odyssey will investigate the history of water on the Red Planet.
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    • Taking the Temperature of a Martian Meteorite
      A chunk of Mars that was hurled to Earth remained cool enough to preserve any microorganisms aboard. So says a group of researchers who have examined martian meteorite ALH84001.
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    • Can Liquid Water Exist on Present-day Mars?
      Scientific consensus holds that liquid water cannot exist on the surface of Mars. But now a pair of scientists argue that liquid water in limited amounts and for limited times may indeed be present on Mars' surface.
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    • Two Rovers in Search of a Landing Site
      In the spring of 2003, NASA will send two rovers to Mars to search for signs of water in the planet's ancient past. But where exactly on Mars should they look for it?
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    • Carbonated Mars
      Here on Earth the only way to make carbonate rocks is with the aid of liquid water. Finding such rocks on Mars might prove, once and for all, that the barren Red Planet was once warm and wet.
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    • Seeing Mars through a Test Tube
      By recreating the Martian surface in the laboratory, NASA scientists may have begun to answer two questions: why the Martian surface is so red, and why organic life has not yet been found there.
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