MASSIVE EXPLOSION ON THE FARSIDE OF THE SUN

Coronagraphs onboard the orbiting Solar and Heliospheric Observatory (SOHO) tracked the fast-moving cloud as it billowed into space:
NASA’s STEREO-A spacecraft, which has a partial view of the sun’s farside, identified the source of the blast as active sunspot AR2665, familiar to readers of Spaceweather.com who watched the behemoth cross the Earthside of the sun earlier this month. STEREO-A observed an intense flash of extreme UV radiation from the sunspot’s magnetic canopy:
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