Magnetic Connections by NASA’s Solar Dynamics Observatory
Magnetic field lines arched and twisted above a small group of active regions and even reached out to connect to each other (Aug. 18-20, 2014). The field lines are revealed in extreme ultraviolet light by charged particles that spiral along them. Sometimes the forces are strong enough to cause an active region to reach out and connect with other active regions, as was the case here. This is most clearly seen between the two topmost regions. Credit: Solar Dynamics Observatory/NASA.