Massive sunspot responsible for May's epic auroras unleashes major X-class solar flare (video)
Sunspot region AR3697 has returned — unleashing yet another X-class solar flare. Watch it erupt from the sun's eastern limb here.
TroibNews 
Sunspot region AR3697 has returned — unleashing yet another X-class solar flare. Watch it erupt from the sun's eastern limb here.
