Radiation from the April 30 solar flare affected those on the sunlit portion of Earth at the time of the eruption, the ...

Newly emerged sunspot fires off X-class and an M-class solar flares in relatively quick succession. Watch the striking video ...

In a remarkable display of the sun's power, new sunspot region AR3663 has unleashed two potent solar flares within a mere six-hour window.

Several media outlets have incorrectly claimed that explosive solar flares were spotted during the April 8 total solar ...

The sun just gave us a reminder of its immense might. Our star unleashed an X-class solar flare today (Dec. 14), blasting out ...

The April 30 flare clocked in at M9.53, according to spaceweatherlive.com, measured by NASA's GOES-16 satellite, which puts ...

NASA classifies solar flares based on their strength, with B-class being the smallest and X-class – which is what was detected last New Year's Eve – being the largest. Weaker solar flares ...

Space Weather Live says the new solar flare is an X2.2. That makes it the most powerful solar flare the Sun has unleashed in the past five years. X-Class solar flares are the strongest possible.

In the early hours of Tuesday (April 23), quadruple solar flares near-simultaneously exploded from across the sun's surface, ...

during an M-class solar flare for NASA's sounding rocket solar flare campaign. The first rocket launched at 2:13 p.m. local Alaska time for the Focusing Optics X-ray Solar Imager (FOXSI ...

but a particularly large sunspot named AR2781 produced a C5-class solar flare which is a medium-sized explosion even for the Sun. Flares range from A, B, C, M, and X with a zero to nine scale in ...