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Stardust Report

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  • tkreevesjr
    Stardust Shifts Path for Earth Encounter
    Message 1 of 3540 , Feb 1, 2000
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      Stardust Shifts Path for Earth Encounter
      <br><br><a href=http://www.discovery.com/news/archive/news20000124/brief4.html target=new>http://www.discovery.com/news/archive/news20000124/brief4.html</a> <br><br>Jan. 24, 2000 -- Sailing through space
      beyond the orbit of Mars, a small NASA probe finished a
      delicate piloting maneuver on Saturday, positioning it for
      a swing around the Earth next year and a close
      encounter with a comet in 2004. <br><br>Stardust, which was
      launched into space Feb. 7, 1999, has been streaming away
      from the sun on the first leg of a planned seven-year
      voyage to retrieve sample materials from a comet's core
      as well as interstellar dust particles. <br><br>Last
      week, spacecraft operators completed a three-part
      maneuver to cut Stardust's speed and sling it back toward
      the sun. Three half-hour engine burns slowed the
      probe by 170 meters per second and resulted in the
      biggest change in Stardust's course, says project manager
      Ken Atkins of NASA's Jet Propulsion Laboratory in
      Pasadena, Calif. <br><br>Now more than twice the distance
      from the sun as Earth, Stardust did not have enough
      power to complete the engine burn in one shot, so
      managers divided the move into three parts, allowing the
      spacecraft to recharge its batteries. Engine burns on
      Tuesday and Friday were successful, says Atkins.
      <br><br>After the third and final engine burn on Saturday,
      Stardust began what spacecraft operators hope will be a
      smooth coast back toward the sun. <br><br>Stardust is
      scheduled to begin its mission on Feb. 22, when it will use
      a tennis racket-type wand to collect miniscule
      samples of interstellar dust, which was recently
      discovered flowing into our solar system from an unknown
      source. <br><br>By Irene Brown, <br>A Discovery News
      Brief
    • jefftibb
      The SEDS site has a short list of Messier Marathon locations where people will congregate to count the Messier Objects. If you would like to join a
      Message 3540 of 3540 , Mar 13 7:41 AM
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        The SEDS site has a short list of Messier
        Marathon locations where people will congregate to count
        the Messier Objects.<br><br>If you would like to join
        a group and do it check out this
        site:<br><br><a href=http://seds.lpl.arizona.edu/messier/xtra/marathon/mm2002.html target=new>http://seds.lpl.arizona.edu/messier/xtra/marathon/mm2002.html</a><br><br>Many will be happening this weekend.
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