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Heliophysics - Space Weather Topics

  • Old Solar Cycle Returns

    2008April 6, 2011

    Three months ago, a new solar cycle began. This week, however, the sun surprised onlookers with three big sunspots from the previous solar cycle. Strangely enough, this is perfectly normal.

  • Backward Sunspot

    2006April 6, 2011

    A strange little sunspot may herald the coming of one of the stormiest solar cycles in decades.

  • Solar Sentinels

    2006April 6, 2011

    With Astronautsreturning to the Moon, reliable forecasts of Space Weatherare more important than ever. A new proposed mission called "Solar Sentinels" would surround the sun with spacecraft to keep an eye on solar activity.

  • Long Range Solar Forecast

    2006April 6, 2011

    The Sun's Great Conveyor Belt has slowed to a record-low crawl, which has important implications for future solar activity: Solar Cycle 25 peaking in 2022 could be one of the weakest in centuries.

  • Solar Storm Warning

    2006April 6, 2011

    This week researchers announced that a storm is coming--the most intense solar maximum in fifty years.

  • Was Einstein Wrong About Space Travel?

    2006Sept. 20, 2011

    According to Einstein's theory of relativity, space travel is a good way to stay young. But Einstein forgot one thing--the biology of space radiation.

  • Scientists Predict Big Solar Cycle

    2006Sept. 20, 2011

    Evidence is mounting: the next solar cycle is going to be a big one.

  • First Light for Hinode

    2006April 6, 2011

    A new space telescope onboard Japan's Hinode spacecraft is beaming back some fantastic images of the sun.

  • The Transparent Sun

    2001April 6, 2011

    Giant sunspot 9393 is making a rare second transit across the face of the Sun. Its unusual reappearance came as no surprise to scientists who tracked the behemoth by peering right through our star.

  • Earth's Invisible Magnetic Tail

    2001April 6, 2011

    The first global views of our planet's magnetosphere, captured by NASA's IMAGE spacecraft, reveal a curious plasma tail that stretches toward the Sun.