Our Sun experienced fewer sunspots in 2008 than it had since the 1957 launch of Sputnik. As of Sun-Earth Day on March 20, 2009, the Sun was continuing its quiet pattern.
Published Mar 20, 2009
This pair of images from the Solar and Heliospheric Observatory (SOHO) spacecraft shows sunspots and ultraviolet light emitted by the Sun on April 29, 2009.
Published May 1, 2009
On January 23, 2012, satellites observed the most powerful solar radiation storm since 2005.
Published Jan 24, 2012
A flare bursts from the Sun in this detailed image taken on August 1, 2010, by the STEREO Ahead telescope.
Published Aug 7, 2010
A bright mass of charged particles loops from the Sun’s outer atmosphere during a solar storm on May 23, 2010. Taken two hours apart, the pair of images shows the stream of particles moving away from the Sun during a coronal mass ejection.
Published Jun 20, 2010
Fiery arcs rise above an active region on the surface of the Sun in this pair of images of a coronal mass ejection on January 27, 2010.
Published Feb 13, 2010
