Mary Anna (7 March 2012)
"Radiation Blast from Big Solar Flare May Threaten Satellites"

 
http://www.space.com/14791-solar-flare-radiation-storm-satellites.html?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+spaceheadlines+(SPACE.com+Headline+Feed)&utm_content=Google+Reader

A radiation wave kicked up by the eruption of a powerful solar flare late Sunday (March 4) will likely miss the Earth, but could catch several NASA satellites in its crosshairs, scientists say.

The radiation concern stems from an X1.1-class flare (the strongest type of sun storm) that blasted from the surface of the sun last night at 11:13 p.m. EST (0413 GMT March 5). The flare unleashed a cloud of charged particles, called a coronal mass ejection (CME).