For the past week, all eyes have been on the Earth-side of the sun, where sunspots 1158 and 1161-1162 have unleashed some of the strongest flares in years. Meanwhile, the farside of the Sun has been busy, too. Here is the movie from NASA's STEREO-B probe…
Plasma cloud from the first X-class solar flare of Solar Cycle 24 (X2.3 on February 15, 2011) is headed our way. It is expected to arrive around February 17. 2011/02/15, at 07:07 UTC – PRESTO-alert: NOAA AR 1158 has produced an X2.3 flare peaking at 01:56 UTC,…
Earth-orbiting satellites detected an X2.3 solar flare at 01:56 UTC on February 14, 2011. This is the most powerful solar flare in nearly five years, and the first X-class solar flare of Solar Cycle 24. The source was behemoth sunspot 1158.
Solar
