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.

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

Hazy, orange light cast by the sunset beams through the stained glass windows in the A.D. White Library. You’re seated at a ...

After Northern Lights appeared as far south as Colorado, Live Science discusses how "cannibal" coronal mass ejections (CME) ...

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

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

On Saturday, NOAA’s Space Weather Prediction Center (SWPC) noted that an M8.1 solar flare, “an eruption of energy from the ...

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

A powerful M8.1 solar flare sent a full-halo coronal mass ejection toward Earth, and scientists expect it to trigger strong ...

MOSCOW (Xinhua): The Sun emitted a powerful X-level solar flare on Monday, according to Russian solar researchers. The X1.1 ...