Sunspot AR3500 blasted a M9.8-class solar flare. NASA's Solar Dynamics Observatory captured footage of the flare in multiple wavelengths. Views from the ESA/NASA Solar and Heliospheric Observatory show an Earth-directed coronal mass ejection (CME) generated by the blast. Credit: Space.com | NASA/ESA/SDO/SOHO | edited by Steve Spaleta
Though there has been a couple of stronger X-class flares. Late last month there was an X1.3.