After a 22-day lull, sunspot AR 4168 unleashed three M-class flares on Aug. 3–4. They may cause brief radio blackouts and auroras from glancing CMEs.

After weeks of relative quiet, the Sun has erupted with a series of powerful solar flares, signaling a return to more active ...

HIP 67522 b can’t stop blasting itself in the face with stellar flares, a type of magnetic interaction that scientists have ...

After more than three weeks without a powerful solar flare, the sun has suddenly ramped up its activity, firing off three ...