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  • Halloween Asteroid

    Oct. 31, 2002

    Near-Earth asteroid 1997 XF11, which briefly scared astronomers five years ago, passes by Earth again this week on Halloween.

  • Hip Science

    Oct. 30, 2002

    Using space technology, NASA-funded researchers are developing artificial bones for pain-free hip implants.

  • Rings around the Sun

    Oct. 24, 2002

    Whenever both sun and clouds are in the sky, be sure to look up--you may behold rings, arcs, and other marvels!

  • How AstronautsGet Along

    Oct. 21, 2002

    Astronautshave a cool demeanor and good people-skills, but six months in a tiny spaceship with the same crewmates can drive anyone to distraction.

  • Earth rocks on the Moon

    Oct. 18, 2002

    Astrobiologists speculate that a valuable record of Earth's distant past is preserved on the Moon.

  • One Night, Two Spaceships

    Oct. 16, 2002

    Sky watchers in North America can spot the ISS and the Space ShuttleAtlantis at the same time on Oct. 16 and 17.

  • Urban Sprawl: the Big Picture

    Oct. 11, 2002

    Earth-orbiting satellites are collecting valuable data that reveal the environmental impact of fast-growing cities.

  • Leonid Meteor Storm Forecast

    Oct. 9, 2002

    Scientists at the NASA Marshall Space Flight Center have released new predictions for the 2002 Leonid meteor storm.

  • A Cold New World

    Oct. 7, 2002

    Astronomers using the Hubble Space Telescope have measured a distant world more than half the size of Pluto. It's the biggest object found in our solar system since the discovery of Pluto itself 72 years ago.

  • Space Medicine

    Sept. 30, 2002

    Researchers discuss how to keep Astronautssafe and healthy during long trips through the solar system.