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New Set of Solar Fireworks
New Set of Solar Fireworks

The sun emitted a significant solar flare, peaking at 2:14 p.m. EDT on Oct. 20, 2012 NASA's Solar Dynamics Observatory (SDO) captured this image of an M9-class flare on Oct 20, 2012 at 2:14 p.m. EDT. This image shows light at a wavelength of 131 Angstroms, which corresponds to material at 10 million Kelvin, and is a good wavelength for observing flares. This wavelength is typically colorized as teal, as shown here. Credit: NASA/SDO

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Page Last Updated: March 31st, 2014
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