In my decades of watching the sun through telescopes, I have never seen anything like this. It's an X-class solar flare, a major event that could possibly cause planet-wide radio blackouts and long-lasting radiation storms. A solar flare is an explosion 💥 on the sun. To my eye, it looked like the surface cracked open to reveal the blindingly white hot interior. We should expect some northern lights, so pay attention.

Took this by placing my phone up to the eyepiece of my hydrogen alpha solar scope (double stacked Lunt 60mm).