Arcing Loops Arcing loops above an active region put on a slinky-like show for SDO, evidence of the dynamic, magnetic struggles taking place below (Nov. 28-30, 2010). Particles spiraling along magnetic field lines trace their paths as they gracefully shift and change. Magnetic forces in the active region are connecting, breaking apart, and reconnecting. Another active region that rotates into view about halfway through the video clip exhibits similar behavior. These frames were taken in extreme ultraviolet light. The smooth motion of the video is made possible by using an image every five minutes (which is just one out of every 60 images taken in five minutes by SDO in this wavelength).