Sun unleashes monster X-class solar flare, most powerful since 2017 (video)

The sun just gave us a reminder of its immense might.

Our star unleashed an X-class solar flare today (Dec. 14), blasting out an immense pulse of high-energy radiation that was captured on video by NASA’s Solar Dynamics Observatory spacecraft. (Solar physicists classify strong flares into three categories, with C being the weakest, M the middling group and X the most potent.)