Solar activity has been low for weeks, but a new active region on the far side of the sun appears set to break the spell of quiet. For the past two days it has exploded repeatedly, hurling bright coronal mass ejections into space and sending shock waves billowing through the sun’s atmosphere. Although the region cannot be seen directly from Earth, NASA’s STEREO-B spacecraft, stationed over the sun’s eastern horizon, has a great view. Visit http://spaceweather.com for movies and updates as this region turns toward our planet in the days ahead.
(Thanks to http://www.spaceweather.com for this!)