Solar flares are classified based on their strength and fall into five designated categories: A, B, C, M and X. An X-class ...

After last week's explosive X-flare, sunspot AR4046 is at it again! Could this latest eruption bring stormy space weather to ...

A powerful X1.1-class solar flare was released by the sun on March 28, resulting in radio blackouts across North and South ...

After an X-class solar flare erupted, shortwave radio blackouts were detected across the Americas — the sunlit side of Earth at the time. These disruptions, common during intense solar activity, occur ...

Astronomers used ALMA to observe Proxima Centauri and found frequent, intense flares that could destroy atmospheres of nearby ...

An unexpected X-class solar flare from a new sunspot region caused widespread radio blackouts across the Americas today ...

Most states along the Canadian border will have a low chance of seeing the northern lights, including parts of northeastern ...

As the sun reaches its solar maximum, a strong solar flare erupted on March 28, which may enhance the visibility of the ...

Only a few years ago, astronomers heralded the discovery of a rocky world circling the sun 's closest space neighbor, Proxima ...

The April 2024 total solar eclipse offered a fleeting but powerful window into the sun’s impact on Earth’s atmosphere.

Saturday night’s northern lights display follows “strong” radio blackouts on Friday, an event that NOAA said briefly ...