STRONGEST SOLAR FLARE OF THE CURRENT CYCLE: Yesterday, May 14th (1651 UT), sunspot AR3664 unleashed the strongest solar flare of the current solar cycle--an X8.7-category blast from beyond the sun's western limb. X marks the spot in this image from NASA's Solar Dynamics Observatory. 📑Spaceweather | The Watchmen's Earth and Space connection

STRONG SOLAR FLARE: The quiet has ended. Earlier today, sunspot AR3842 produced an M7.6-class solar flare (movie) and a shortwave radio blackout over the Pacific Ocean. AR3842 has a delta-class magnetic field that harbors energy for even stronger X-class flares. 📑Spaceweather | The Watchmen's Earth and Space connection