http://www.csmonitor.com/Science/2012/1023/On-the-sun-Massive-solar-flare-unleashed-video

"The sun unleashed a powerful solar flare late Monday (Oct. 22), releasing waves of radiation into space that have already caused a short radio blackout on Earth.
The same sunspot produced three strong flares before this one in just the two days since it became visible from Earth's perspective. "This means more flares are probably in the offing, and they will become increasingly Earth-directed as the sunspot turns toward our planet in the days ahead," astronomer Tony Phillips wrote on Spaceweather.com, a website that tracks skywatching and space weather events. "

NOTE: Do NOT wear your tinfoil hat during these events, they tend to focus the solar radiation and heat your brain.