Skip to Main Content

Heliophysics - Space Weather Topics

  • A Massive Explosion on the Sun

    2007April 6, 2011

    Last December, Japan's Hinode spacecraft observed a massive explosion on the sun. Researchers analyzing the data have now produced a must-see movie of the flare's magnetic underpinnings.

  • New Discovery: The Sun is Bristling with X-ray Jets

    2007April 6, 2011

    Astronomers using Japan's Hinode spacecraft have discovered a major new form of solar activity: abundant x-ray jets.

  • Is a New Solar Cycle About to Begin?

    2007April 6, 2011

    The solar Physicscommunity is abuzz this week. No, there haven't been any great eruptions or solar storms. The source of the excitement is a modest knot of magnetism that popped up on the sun, possibly heralding the start of a new solar cycle.

  • The Biggest Explosions in the Solar System

    2002Sept. 20, 2011

    NASA's HESSI spacecraft aims to unravel an explosive mystery: the origin of solar flares.

  • Aurora Season Begins

    2002April 6, 2011

    Autumn has arrived and that means it's time to watch out for Northern Lights.

  • Starshine 2 Return

    2002April 6, 2011

    A glittering satellite named Starshine 2 will disintegrate in Earth's atmosphere on April 26th.

  • The Resurgent Sun

    2002April 6, 2011

    Evidence is mounting that some solar cycles are doubled-peaked. The ongoing solar maximum may itself be a double -- and the second peak has arrived.

  • Auroras Underfoot

    2002April 6, 2011

    A group of Astronautswill never forget the day they flew right through a cloud of auroras while onboard the Space ShuttleAtlantis.

  • A New Kind of Solar Storm

    2005April 6, 2011

    Going to the Moon? Be careful. A new kind of solar storm can take you by surprise.

  • Solar Myth

    2005April 6, 2011

    With solar minimum near, the sun continues to be surprisingly active. New data show that powerful explosions can happen even during the lowest ebb of the sunspot cycle.