Image: Coronal mass ejection erupts on the Sun, 31 August 2012
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Description: On 31 August 2012 a long filament of solar material that had been hovering in the sun's atmosphere, the corona, erupted out into space at 4:36 p.m. EDT. The coronal mass ejection, or CME, traveled at over 900 miles per second. The CME did not travel directly toward Earth, but did connect with Earth's magnetic environment, or magnetosphere, causing aurora to appear on the night of Monday, September 3. This is a a lighten blended version of the 304 and 171 angstrom wavelengths.
Credit: NASA/GSFC/SDO
Usage Terms: Public domain
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