Solar Dynamics Observatory: Interacting regions

More stunning footage from the Solar Dynamics Observatory [SDO].

From the SDO video summary

Two pairs of active regions observed in extreme ultraviolet light show the dynamic magnetic interplay between them (Aug. 3-4, 2010). Energetic plasma is drawn to the magnetic field lines above active regions and forms the highly structured coronal loops. Connecting lines can also be seen reaching across between for the two widely separated active regions seen in profile to the left.

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