"It's March Madness," says Greg Piepol who photographed the three sunspots from his backyard observatory in Rockville, Maryland:
©Greg Piepol |
LISTEN: During the M2-flare, radio astronomer Thomas Ashcraft heard a curious "heaving sound" coming from the loudspeaker of his 21 MHz radio telescope in New Mexico: listen. "It was a Type II solar radio burst," he explains. Such bursts are generated by shock waves at the leading edge of CMEs.
NOAA forecasters estimate a 50% chance of more M-flares during the next 24 hours. Readers, if you have a solar telescope, now is a good time to monitor the sun.
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