Radiation levels at airline flight altitudes briefly reached levels that could be potentially harmful to pregnant women.

The flare peaked at 9:49 p.m. ET on November 30 and triggered an R3-level radio blackout on the sunlit side of Earth.

A sunspot 10 times larger than Earth has appeared on the surface of the sun just as an X1.9-rated solar flare occurred.

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

A recent solar storm spiked radiation levels tenfold in flight zones, prompting scientists to warn of potential future ...

This was the view as a multi-colored curtain of aurora formed to the south in my sky during the great display of Northern Lights on May 10, 2024. The Kp Index peaked at 8 this night bringing the ...

Nov. 11 (UPI) --Scientists said the sun erupted Tuesday morning, unleashing a strong X5.1-class flare in an intense outburst, causing communications disruptions. It was the year's strongest solar ...

While last week's stunning auroras delighted many people across Australia, a massive solar storm that hit last year squeezed Earth's protective shield to a fifth of its size, according to new ...

Gigantic sunspots of the groups AR 4294-4298 are currently rotating towards the Earth. Experts are observing possible auroras ...

The X5.1-class eruption from sunspot AR4274 is this year's most powerful solar flare and Earth is in the firing line. Editor's note: Wow, the northern lights put on a stunning display last night with ...