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  • Plugged in to space

    1998Sept. 20, 2011

    A proposed flight demonstration, using floating tethers for propulsion, will show how to keep space clean - and boost satellites.

  • Interplanetary Christmas

    1998April 6, 2011

    Santa discusses his plans for Christmas on future space colonies.

  • Far Out Space Propulsion Conference Blasts Off

    Science@NASA Headline NewsApril 6, 2011

    Atoms locked in snow, a teaspoon from the heart of the sun, and the stuff that drives a starship will be on the agenda of an advanced space propulsion conference that opens today in Huntsville.

  • The Tunguska Impact--100 Years Later

    2008April 6, 2011

    One hundred years after the Tunguska event in Siberia, scientists review what they've learned about the mysterious blast from the heavens.

  • NASA to Attempt Historic Solar Sail Deployment

    2008April 6, 2011

    This summer, NASA engineers will try to realize a dream older than the Space Age itself: the deployment of a working solar sail in Earth orbit. The name of the device is NanoSail-D and it is scheduled for launch onboard a SpaceX Falcon 1 rocket as early as July 29, 2008.

  • A Brief History of Solar Sails

    2008April 6, 2011

    Have you ever stared up at the night sky, felt a gentle breeze, and wished you could set sail for the stars? Get in line. Many great thinkers from history have had the same idea. This long-held fancy could soon become reality with one solar sail mission on the drawing board and another already on the launching pad, slated to blast off this summer.

  • Mini-CometsApproaching Earth

    2006Sept. 20, 2011

    A cometary "string-of-pearls" will fly past Earth in May 2006 giving astronomers a fantastic view of a comet in its death throes.

  • Crabs Give Blood for Space Travel

    2006April 6, 2011

    Soon, Astronautsonboard the ISS will test a high-tech medical device that uses primitive enzymes from horseshoe crabs to diagnose human illness.

  • In Search of Crater Chains

    2006April 6, 2011

    What happens when a fragmented comet hits the surface of a planet? It makes a chain of craters. Researchers are looking for evidence of these crater chains here on Earth.

  • Corkscrew Asteroids

    2006April 6, 2011

    A tiny asteroid corkscrewing around Earth for the past seven years is about to leave the neighborhood.