
The relatively small, unassuming sunspot AR3599 has been crackling with minor solar flares in recent days — but it surprised everyone by unleashing a strong M7.4 class solar flare on Sunday (March 10) at 8:13 EDT (1213 GMT).

The relatively small, unassuming sunspot AR3599 has been crackling with minor solar flares in recent days — but it surprised everyone by unleashing a strong M7.4 class solar flare on Sunday (March 10) at 8:13 EDT (1213 GMT).