• M3 solar flare took place on Sun’s western limb

    This morning at 1145 UT, an active region on the sun’s western limb unleashed an M3-class solar flare. NASA’s Solar Dynamics Observatory recorded the flash of extreme UV radiation:Although the blast site was not directly facing Earth, radiation from the explosion

  • Behemoth sunspot 1263 has almost doubled in size

    Behemoth sunspot 1263 has almost doubled in size this weekend. A 28-hour movie from NASA's Solar Dynamics Observatory shows the spot developing a tail that has added some 50,000 km of length to the active region.This development may increase the likelihood of a stro