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http://sohowww.nascom.nasa.gov/pickoftheweek/ SOHO
Like a drum roll before the big moment, the Sun blasted out numerous smaller blasts of particles to the right before it unleashed a large, bright coronal mass ejection that was associated with an M-1 (medium-sized flare) during the period Jan. 26-28, 2011. SOHO's C2 coronagraph caught all the action. A smaller blast caused by an erupting filament flew out from the Sun's opposite edge almost simultaneously with that blast. In the still, we superimposed a Solar Dynamics Observatory (SDO) image of the Sun in extreme UV light taken at about the same as the coronagraph image.

foto..il filamento