Looks to be a biggie - from SpaceWeather:
New sunspot 875 has a “beta-gamma-delta” magnetic field that harbors energy for X-class solar flares.
X-Class is the biggest — if one of them hits Earth square-on, we have brilliant Aurorae, radio blackouts, electrical distribution problems. Still a few days away from being any kind of threat though.
Sure is beautiful though:

Image by Andreas Murner of Lake Chiemsee, Bavaria, Germany.
Posted by DaveH at April 26, 2006 07:20 PM | TrackBack