Solar flare

A combination of computer modeling and solar imagery visualize the sun's magnetic structure, offering a peek at the intense and dramatic activity that keeps the star's engine running.

On Thursday (Oct. 29), the White House released two documents that lay out the nation's official plan for mitigating the negative impacts of solar flares and other types of "space weather."

A dark, moonless sky is awash in light radiating from an aurora over Antarctica in a new image released by NASA.

A solar flare that erupted on the sun this week could intensify the northern lights, and perhaps bring dazzling auroras as far south as Seattle, Chicago and Boston.