A flare bursts from the Sun in this detailed image taken on August 1, 2010, by the STEREO Ahead telescope.
Published Aug 7, 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
On January 23, 2012, satellites observed the most powerful solar radiation storm since 2005.
Published Jan 24, 2012
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
This ultraviolet image, captured by NASA’s Solar Terrestrial Relations Observatory (STEREO) Ahead spacecraft on February 12, 2010, shows solar storms brewing in two active areas of the Sun.
Published Mar 20, 2010
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