X-CLASS SOLAR FLARE: On Sept. 6, 2017, at 12:02UT, active sunspot AR2673 unleashed an X9.3-class solar flare--the strongest solar flare in more than a decade. The explosion also hurled a CME into space, and possibly toward Earth. Analysis of the event is still underway. Visit Spaceweather.com for updates and more information about the historical context of today's remarkable flare.
Above:The extreme ultraviolet flash from today's X9-class flare as seen by NASA's Solar Dynamics Observatory. More snapshots of the flare may be found in the Space Weather Photo Gallery.
