The back-to-back eruptions caused radio blackouts across two hemispheres as the active sunspots turn to face Earth.

NASA's Solar Dynamics Observatory captured sunspot AR3386 blast a long-duration X1.6-class solar flare and X1 flare. See time ...

In the pre-dawn hours of Nov. 11, the sun let loose a dazzling but disruptive display of its power: an X5.1-class solar flare ...

The sun is not a static, tranquil sphere of gas, but an active, turbulent star with magnetic fields that twist and snap in powerful eruptions. Among the most striking and energetic of these eruptions ...

In the wake of the solar flares, the National Oceanic and Atmospheric Administration’s Space Weather Prediction Center ...

There is a chance of powerful X-class solar flares that are capable of causing radio blackouts over the next three days, according to forecasters. The National Oceanic and Atmospheric Administration ...

Scientists said the sun erupted Tuesday morning, unleashing a strong X5.1-class flare in an intense outburst, causing ...

The giant solar explosions of energy and light aren't over yet. Officials said on Tuesday that the sun just emitted another major solar flare – and that it's the strongest one so far in the current ...

The Sun hurled another colossal solar flare our way on Wednesday, triggering shortwave radio blackouts across the sunlit side of Earth. Scientists say the flare erupted from a peculiar sunspot called ...

The sun has somewhat surprised forecasters today with a dramatic X-class solar flare from a newly emerging sunspot region. The intense solar flare originated from sunspot region AR4046 and was ...

The sun put on quite the spooktacular show on Halloween, firing off an X2.0 solar flare. A giant white flare, like an X bursts from the center of a fiery surface, blazed with reds and oranges in a ...

Geomagnetic storms occur when charged particles from the sun collide with Earth’s atmosphere, creating auroras.