"This is the largest solar radiation storm in over 20 years," the Space Weather Prediction Center said on Monday.

The sun sure has woken up this week, unleashing a powerful X-class solar flare on Jan. 18 that hurled a colossal, fast-moving ...

A rare and intense energy flare from the sun has reached our planet, leading to what scientists say is the most violent solar ...

A blistering coronal mass ejection from the Sun raced to Earth in just 25 hours, triggering a severe G4 geomagnetic storm and ...

Thanks to a giant eruption on the Sun and a large opening in its atmosphere, we're currently experiencing G4 conditions – a ...