NOAA confirmed an X-class solar flare originating from Active Region 4341 on the Sun on Sunday, Jan. 18.

An X-class solar flare has produced an Earth-directed coronal mass ejection, increasing solar activity and raising the likelihood of geomagnetic impacts within 24 hours.

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A spot on the sun 10 times larger than Earth has been seen ...

X1.9-rated solar flare erupted from sunspot 4341 on January 18, causing R-3 radio blackouts.

The sun has fired off not one but two colossal X-class solar flares in less than 12 hours, causing radio blackouts across the sunlit portion of Earth at the time of eruption and marking a dramatic ...

The northern lights could be visible from a much larger portion of the northern United States than usual on Tuesday night and Wednesday morning, according to the National Oceanic and Atmospheric ...

"This is one of the most exciting results from Solar Orbiter so far." ...

Scientists watched a solar flare grow from tiny magnetic sparks into a violent plasma-raining avalanche on the Sun.

Just as avalanches on snowy mountains start with the movement of a small quantity of snow, the ESA-led Solar Orbiter ...

A major flare-up affected an aircraft’s data and control; the solution was so easy that it almost makes no sense.

The region has unleashed at least two powerful solar flares in the last 12 hours, and experts are certain there's more to come. Reading time 2 minutes The Sun is currently in the active phase of its ...