When active regions are fairly active and close together, their magnetic field lines connect one region to the other in a tangle of arched lines (Jan. 8-9, 2016). Over a two-day period, we watched as their lines connected, broke apart and reconnected between several other active regions. This activity serves to illustrate the dynamism that is often observed at the Sun's surface. Images were taken in a wavelength of extreme ultraviolet light. Credit: Solar Dynamics Observatory, NASA.
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