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  • Four Wheeling on the Moon

    March 17, 2000

    The first interplanetary Sports Utility Vehicle makes a comeback at the 7th annual Great Moon Buggy Race in April 2000. Read this article to learn more about the history of the Lunar Rover and how kids today are solving some of the same engineering challenges

  • Solstice Animation

    June 13, 2000

  • Solar Cycle Update

    Feb. 4, 2000

    Nearly 400 years after they were first sighted by Galileo through a telescope, sunspots continue to perplex scientists.

  • From the Drawing Board to the Stars

    June 13, 2000

    In this scientific human interest story, Dr. Jim Burch describes what it's like to visualize a modern space mission and then, years later, to make it happen. Burch shares his experiences as a competitor for mission funding, as a coordinator of far-flung personnel, and as an onlooker during launch.

  • Retreat of the West Antarctic Ice Sheet

    Dec. 27, 2000

    Scientists say that the West Antarctic Ice Sheet is retreating more slowly than they thought. In fact, it may have been growing just 8,000 years ago -- long after the end of the most recent Ice Age.

  • What's the Matter with Antimatter

    May 29, 2000

    Antimatter -- it may be the ultimate fuel for space travel, but right now it is fleeting, difficult to work with and measured in atoms instead of kilograms or pounds! In this two-part story we'll explore what antimatter is, and how it may be used for space propulsion.

  • Ham Radios in Space

    Aug. 6, 2008

  • Amatuers Reach for the Stars

    April 21, 2000

    Amateur astronomers attended a unique meeting in mid-April to learn about high-energy Astrophysicsand how they can participate in it.

  • A Good Month for Asteroids

    Sept. 20, 2000

    September has been a good month for astronomers studying Near-Earth Asteroids(NEAs). No fewer than five sizable minor planets have flown past our planet since the beginning of the month, affording astronomers a close-up look at these ever-scary space rocks.

  • Space Lasers Take Aim at the Wind

    June 19, 2000

    NASA scientists are studying a type of radar that uses laser light instead of microwaves to provide snapshots of the winds that travel the globe. Knowing the wind's speed and direction over large areas could help meteorologists answer the riddle of tomorrow's weather and benefit many areas of the world's economy.