NASA SDO - X2 Class Solar Flare, September 6, 2011 @LittleSDOHMI

Uploaded September 2011 | Updated September 2026, 2 weeks ago

For the second time in one day, active region 1283 flared up big. This time an even bigger flare than the M-class flare from this morning. Tonight's was an X-class flare. X-class flares are big; they are major events that can trigger planet-wide radio blackouts and long-lasting radiation storms.

Credit: NASA SDO

NASA SDO - X2 Class Solar Flare, September 6, 2011

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