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  • Space StationTricorder

    May 9, 2008

    Astronautsare using a Star Trek tricorder-like device to keep track of microscopic life forms onboard the International Space Station.

  • Pollen Alert!

    Sept. 19, 2008

    NASA is teaming up with public health organizations to create a pollen alert system that could help people with maladies ranging from common hay fever to serious heart and lung diseases.

  • Plasma Bullets Trigger Northern Lights

    July 24, 2008

    Researchers have discovered what powers brilliant outbursts of Northern Lights: gigantic plasma bullets launched toward Earth by explosions 1/3rd of the way to the Moon.

  • What's Wrong with the Sun?

    July 11, 2008

    The sun is entering its 3rd year of eerie calm. Sunspots are rare and solar flares simply aren't happening. Is this "solar minimum" lasting longer than it should? A NASA scientist has examined centuries of sunspot data to find the answer.

  • Magnetic Portals Connect Earth to the Sun

    Oct. 30, 2008

    Researchers have discovered 'magnetic portals' forming high above Earth that can briefly connect our planet to the Sun. Not only are the portals common, one space physicist contends they form twice as often as anyone had previously imagined.

  • Halloween Sky Show

    Oct. 28, 2008

    The planets are gathering for spooky sunset sky show on Oct. 31st. Read today's story to find out where to look.

  • Surprises from Mercury

    Jan. 30, 2008

    NASA's Messenger spacecraft has beamed back some surprising new data from the planet Mercury. Highlights include a weird crater nicknamed "the Spider," a planetary tail of hydrogen atoms, and measurements that show giant Caloris basin is even bigger than researchers thought.

  • The Vanishing Rings of Saturn

    March 18, 2008

    Amateur astronomers around the world have noticed, something is happening to Saturn. The planet's rings are rapidly narrowing and, if this continues, before long they'll be just a wafer-thin line almost invisible to backyard telescopes.