Jupiter

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    Jupiter's moon, Io, blasted a volcanic eruption miles high and visible to ground telescopes in Hawaii. The eruption site is larger in surface area than all of Los Angeles or London.
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  • Galileo Flyby: Extreme Explorers Hall of Fame
    The Jupiter probe, Galileo, is this week's selection for the Extreme Explorers Hall of Fame. In the next ten days, the robotic spacecraft flies within 100 miles of the unusual moon, Amalthea, which gives off more heat than it receives. As Galileo has filled its
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  • Amalthea Flyby: The Heat is On
    On November 5, the Galileo spacecraft with fly less than 100 miles over one of Jupiter's moons called Almathea. The moon is unique as one that gives off more heat than it receives from the Sun--perhaps from Jupiter's radiation bands or tidal heating.
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  • Jupiter Uncloaks: Most Moons Ever Found at Once
    When Galileo's first telescope found 4 Jovian moons, could he have imagined? The most moons ever found at once--11. Discovered by Hawaii astronomers using a 7-foot lens at Mauna Kea, the moons must have been captured from solar-orbitting asteroids.
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  • How Jupiter Got Big
    How did the largest planet in our solar system form? New theories on how planets like Jupiter form put traditional theories to the test.
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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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  • Focus on Europa
    Scientists from a variety of disciplines met recently to consider the possibility of life on Europa, and to plan how to look for it.
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  • Through Thick or Thin: Exploring Europa’s Outer Layer of Ice
    When NASA's Galileo spacecraft sent back images and data of the Jovian moon Europa, scientists began thinking seriously that life just might exist on this enigmatic, frozen world.
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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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  • 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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  • How Jupiter Got Big
    How did the largest planet in our solar system form? New theories on how planets like Jupiter form put traditional theories to the test.
    more...
  • Through Thick or Thin: Exploring Europa’s Outer Layer of Ice
    When NASA's Galileo spacecraft sent back images and data of the Jovian moon Europa, scientists began thinking seriously that life just might exist on this enigmatic, frozen world.
    more...
  • Ganymede’s Liquid Past
    Long swaths of bright, flat terrain on surface of Jupiter's moon Ganymede may testify that water emerged there about billion years ago.
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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.
    more...
  • Without Jupiter, Home Alone
    The giant planet Jupiter swallows up asteroids and comets, or flings them into space. Without Jupiter, comet and asteroid impacts might have wiped out any life on Earth.
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