The spot is visible on the AIA 193 channel (http://sdo.gsfc.nasa.gov/assets/img/latest/latest_1024_0193.jpg) since yesterday.
2012 doomsday-theorists should be delighted.
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I've never been canoeing before, but I imagine there must be just a few simple heuristics you have to remember... Yes, don't fall out, and don't hit rocks.