Friedrich Wenz (12 March 2011)
"Signs in the sun: AURORAS INVADE THE USA"

Earth's magnetic field is still reverberating from a CME strike on March 10th.


After four years without any X-flares, the sun has produced two of the powerful blasts in less than one month: Feb. 15th and March 9th. This continues the recent trend of increasing solar activity, and shows that Solar Cycle 24 is heating up.