[UPDATE: Oh for criminy's sake. I made a mistake here. The big sunspot group I describe below is actually AR 1515 which has been on the Sun for a while now. AR 1520 can be seen in the full Sun pic on the very left, on the Sun's edge! It's still huge, roughly the same size as 1515, and it's just now coming into view. Most everything I said below about the sunspot group is correct, except it's about 1515 and not 1520! I've corrected the details below. Sorry about the confusion, and thanks to zAmboni in the comments for pointing this out!]
The Sun is at it again:
Active Region 1520, a vast sunspot group, is currently blemishing the Sun's face.
Active Region 1515, a vast sunspot group, has been blemishing the Sun's face for days, and is being joined by Active region 1520, another huge group just now ...
