ENTANGLED ERUPTION: Interrupting days of quiet, sunspot AR1564 erupted on Saturday, Sept. 8th, producing an M1-class solar flare. NASA’s Solar Dynamics Obervatory (SDO) recorded the extreme ultraviolet flash:

The movie shows more than just a single flare. This eruption was “entangled.” A magnetic tendril guided a wave of hot plasma all the way from the blast site to another active region (AR1562) on the western limb ~250,000 km away.

Since SDO was launched in 2010, the observatory has recorded hundreds of entangled eruptions. Sometimes they spread like a chain reaction to involve nearly the entire sun. A good example is the global eruption of August 2010. The moral to this story: One little flare can go a long way.

from:    spaceweather.com