It's Baa-ack! Sunspot Returns With Year's Biggest Blast
Monday, February 24, 2014 - 23:00
in Astronomy & Space
A giant sunspot region is starting its third go-round with a bang — in the form of the most intense solar flare recorded in more than a year.The X4.9-class flare burst forth just as active region 1990 returned to the sun's Earth-facing side, at about 7:50 p.m. ET Monday.