Solar flares and other activity can disrupt radio communications, power grids and navigation signals, according to NASA.

The Sun fired a staggering X1.9-class solar flare at the turn of the month, triggering a sudden, widespread radio blackout ...

Scientists caught a massive and extremely powerful X-class solar flare being spat out from the sun on Friday (March 28), just before the stellar eruption triggered a radio blackout across two ...

A powerful X1.9 solar flare from new sunspot AR4299 triggered strong radio blackouts, as giant sunspot AR4294 rotates into ...

A sunspot, potentially generating multiple solar flares, may lead to auroras that could be visible as far south as Alabama.

Could we see more northern lights this month? Multiple sunspots are rotating into view, with one already release an X-class ...

Even Florida got to see the Northern Lights in all their glory; well, that’s a plot twist if there ever was one. A very rare ...

A moderate geomagnetic storm watch has been issued, here's what to know and how far south the northern lights may come.

The NOAA three-day forecast is dotted with several predictions of KP levels reaching high enough for a G1 geomagnetic storm. A G1 storm is a minor solar storm, but one that could bring potential ...

The Sun is covered in dark patches bigger than Earth. A powerful flare has already erupted, with more likely coming.

This week's science news has taken us in a time machine, from the discovery of a 506 million-year-old fossil of a bizarre "sea monster" that breathed through its butt to the death of the universe ...