solar flares

The flares caused radio blackouts for about an hour each.

Solar flares, canyons of fire... it seems like it's trying to get our attention.

A mid-level burst of radiation looks like a twinkle in the sun's eye.

Have you seen it at sunset yet?

Trouble comes on the heels of the rover's recovery from a computer glitch.

The sun is just bursting with love and 14-million-degree plasma.

A flying telescope saw "magnetic braids" at a resolution of 0.2 arcseconds - about the size of a dime seen from 10 miles away.

How do we know the sun is moving into the most active part of its 11-year cycle? For starters, we can plainly see it.

A mystifying trick of the sun, inappropriately interfering with particles on Earth, could be used as an early-warning system for...

Yesterday–at least in the northeast U.S.–was a picture-perfect, sun-shiney day. But as many of us took a few extra minutes...