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  • Untitled Document

    Oct. 18, 2000

  • Here Comes Comet Linear

    July 5, 2000

    Comet 1999 LINEAR S4, which can already be seen through binoculars, is expected to become a faint naked-eye object similar in appearance to the Andromeda Nebula as it glides by the Big Dipper this month. Maximum brightness is expected on July 23, 2000.

  • Flowing Sand in Space

    Nov. 17, 2000

    NASA scientists are sending sand into Earth orbit to learn more about how dirt behaves during earthquakes. Their results will help civil engineers build safer structures on Earth and someday on other planets, too.

  • Backyard Gamma-ray Bursts

    Oct. 16, 2000

    With the successful launch of NASA's HETE-2 satellite, amateur astronomers will soon be able to spot the most powerful explosions in the Universe from the comfort of their own back yards. Professionals are also looking forward to the new data, which they hope will unravel the mysteries of gamma-ray bursts.

  • Ocean Tides Lost and Found

    June 15, 2000

    The Moon's gravity imparts tremendous energy to the Earth, raising tides throughout the global oceans. What happens to all this energy? After 200 years of debate, scientists using data from the orbiting TOPEX/Poseiden satellite may now have the answer.

  • Leonids Galore

    Nov. 21, 2000

    The art of predicting Leonid Meteorsofficially became a science this weekend as sky watchers around the globe enjoyed three predicted episodes of shooting stars. This story includes video and some unusual pictures of Leonid fireballs.

  • Great Ganymede!

    May 19, 2000

    This weekend the Galileo spacecraft will hunt for signs of mysterious "cryptovolcanoes" and collect new data on Ganymede's unique magnetic field.

  • A Faint Sungrazing Comet -- April 28, 2000

    April 28, 2000

  • Farewell Compton

    March 24, 2000

    The Compton Gamma-ray Observatory is destined for a watery grave in the remote Pacific on June 3, 2000. At a press conference today, NASA officials cited human safety concerns in explaining their decision to de-orbit the satellite, which has revolutionized our understanding of the cosmos during a highly successful 9 year mission.

  • Where's the Edge?

    April 11, 2000

    Will humans always be confined to the Solar System? Not if NASA's Advanced Space TransportationProgram has a say in the matter! Find out how scientists are working to turn science fiction into standard practice with new and innovative ways to reach the stars.