September 4, 2014

NASA’s Solar Fleet Sees Massive Filament Erupt on Sun

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Swirls of green and red appear in an aurora over Whitehorse, Yukon on the night of September 3, 2012. The aurora was due to the interaction of a coronal mass ejection (CME) from the sun with Earth's magnetosphere. The CME left the sun on August 31 and arrived on September 3. Image Courtesy of David Cartier, Sr.

Swirls of green and red appear in an aurora over Whitehorse, Yukon on the night of September 3, 2012. The aurora was due to the interaction of a coronal mass ejection (CME) from the sun with Earth's magnetosphere. The CME left the sun on August 31 and arrived on September 3. Image Courtesy of David Cartier, Sr.

A long filament erupted on the sun on August 31, 2012, shown here in a movie captured by NASA’s Solar Dynamics Observatory (SDO) from noon EDT to 1:45 a.m. the next morning. The filament lies in the lower left corner of the sun. The movie shows light at 304 Angstroms and 171 Angstroms, both of which help scientists observe the sun’s atmosphere, or corona. Following SDO’s view are two taken by the Solar and Heliospheric Observatory (SOHO) and the Solar Terrestrial Relations Observatory (STEREO) showing the associated coronal mass ejection (CME). Credit: NASA/SDO/AIA, NASA/STEREO, SOHO (ESA & NASA)


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