There have been only a handful of X-flares since the beginning of new Solar Cycle 24. So far, all in 2011: Feb. 15 (X2), March 9 (X1), Aug. 9 (X7), Sept. 6 (X2), Sept. 7 (X2). Before these the last X-flare was on Dec.14, 2006, during Solar Cycle 23.
Highlights of the discoveries of the SOHO and TRACE satellites, featuring NASA solar scientists Alex Young and Dawn Meyers, describing how both satellites view the sun in their own unique way
