Strange Spun-Up Sunspot Shifts Its Shape

Sunspot 1271 has been changing form over the past 72 hours, possibly a pre-cursor to a M-Class solar flare that could pose a threat to Earth. Includes Solar Dynamic Observatory imagery time-lapsed from August 22-24, 2011. Editor: Steve Spaleta
credit : E. Baur/Music: Atom Strange / Steve Spaleta