A sunspot, potentially generating multiple solar flares, may lead to auroras that could be visible as far south as Alabama.

The star causing this flare is not yet fully devoured: "Like a fish only halfway down the whale's gullet." Astronomers have spotted the biggest flare ever seen erupting around a black hole, which also ...

A flurry of activity solar activity this week produced a severe solar storm, sparking northern lights as far south as Florida on Tuesday night- just days after the sun unleashed its strongest solar ...

The distant universe might be littered with supermassive stars between 1000 and 10,000 times the mass of the sun, which could ...