NASA Releases Images of Jupiter Moon..The Howard Chronicles 082401

Discussion in 'Astronomy, Exobiology, & Cosmology' started by HOWARDSTERN, Aug 24, 2001.

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    AUGUST 22, 20:53 EDT
    <b>NASA Releases Images of Jupiter Moon </b>





    PASADENA, Calif. (AP) — NASA released new images Wednesday of Jupiter's moon Callisto, including a full-color portrait and the closest look ever at the planet-sized body's ancient, cratered surface.

    The images, acquired May 25 by the National Aeronautics and Space Administration's Galileo spacecraft, were taken as close as 86 miles from the moon. The images show objects as small as 10 feet across.

    Scientists said the terrain in the close-up images is unlike anything seen before on Jupiter's moons.

    Knobby spires of ice more than 300 feet tall lie surrounded by darker material. The spires were likely formed from material thrown outward after the moon was struck by another object billions of years ago.

    The full-color portrait, the first made by the robotic Galileo spacecraft, shows the heavily cratered, ice-and-rock covered face of Callisto, which is almost as large as the planet Mercury.

    Galileo, launched in 1989, has orbited Jupiter since December 1995. Its mission will end with a fiery plunge into Jupiter's atmosphere in September 2003, on its 35th orbit of the giant planet.
     
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    Galileo Gets One Last Frequent-Flyer Upgrade

    <b>Galileo Gets One Last Frequent-Flyer Upgrade </b>

    The resilient Galileo spacecraft doesn't know when to call it quits. So, NASA has outlined the details of one last mission extension, which includes five more flybys of the Jovian moons before a final plunge into the crushing pressure of the giant planet's atmosphere.
    The science program for the Galileo mission extension was recommended to NASA by a blue-ribbon panel of planetary scientists, who met last July, and will cost $9 million. "This mission extension accomplishes the highest priorities of the review panel in a cost effective way," said Paul Hertz, Galileo Program Executive at NASA Headquarters.
    Full Press Release
    <img src="http://galileo.jpl.nasa.gov/graphics/p34571b.gif">




    Galileo's Flyby Reveals Callisto's Bizarre Landscape

    A spiky landscape of bright ice and dark dust shows signs of slow but active erosion on the surface of Jupiter's moon Callisto in new images from NASA's Galileo spacecraft.
    Full Press Release

    <img src="http://galileo.jpl.nasa.gov/graphics/callisto_terrain_150.jpg">




    Galileo Millennium Mission Status

    NASA's Galileo spacecraft is transmitting to Earth scientific information from its dash past Jupiter's moon Io last week, including top-priority measurements of magnetic forces above Io's north pole.
    Full Press Release

    <img src="http://galileo.jpl.nasa.gov/graphics/io_pizza.jpg">




    Spacecraft to Fly Over Source of Recent Polar Eruption on Io

    NASA's Galileo spacecraft will buzz the north pole of Jupiter's moon Io early next week to get unprecedented magnetic measurements and examine the site of a dramatic recent volcanic eruption.

    The durable robot will skim about 200 kilometers (124 miles) above Io's surface at 9:59 p.m. Aug. 5, Pacific Daylight Time (12:59 a.m. Aug. 6, EDT). A few seconds later, Galileo will speed over an area that was belching a giant plume of volcanic gases seven months ago. The spacecraft will be flying at a lower altitude than the top of the plume, creating the possibility that Galileo will fly right through a volcanic plume for the first time.
    <img src="http://galileo.jpl.nasa.gov/graphics/iocraters_150.jpg">
     
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    Last edited: Aug 24, 2001

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