The powerful X1.1 solar flare from sunspot region 4298 sparked strong radio blackouts on the sunlit portion of Earth at the time of eruption.

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

A rare blast from the sun has just pushed radiation in Earth’s atmosphere to levels not seen in nearly two decades, briefly ...

We could see strong G3 geomagnetic storm conditions this week. Here's what to know.

Levels of potentially dangerous cosmic radiation in Earth's atmosphere rose to a two-decade high in November after a rare ...

The Sun follows a 22-year magnetic cycle, with solar activity rising and peaking roughly every 11 years. But when conditions ...

"We know from historical observations that significantly bigger events are possible, and we need to be ready," said a researcher.

Scientists can usually spot coronal mass ejections before they affect Earth—but this one snuck past coronagraphs and ...

The Sun unleashed its most powerful solar flare of 2025 on November 11, sending a burst of high-energy radiation speeding ...

Our sun continues to make news headlines as we’re still in a strong solar cycle that has generated numerous solar flares and ...

Radio Communications: Solar flares can disrupt high-frequency radio communications, impacting pilots and maritime operations. Electric Power Grids: Intense solar activity can induce currents in power ...

Scientists have captured an exceptionally rare, high-resolution view of an active region that produced two powerful X-class ...