B February 8, 2010 Big Sunspot Appears The sudden emergence of big sunspot 1045 over the weekend has caused a sharp upsurge in solar activity. The active region has produced three M-class and… Read the guide →
N September 22, 2009 New Sunspots (Finally!) In a year when the sun has been utterly blank 80% of the time, the sudden emergence of two large sunspots in a single day is… Read the guide →