The sun sure has woken up this week, unleashing a powerful X-class solar flare on Jan. 18 that hurled a colossal, fast-moving ...

A powerful flare has unleashed a severe solar storm that could cause auroras and satellite disruptions on Earth.

A strong geomagnetic storm could interact with Earth's atmosphere within the next 24 hours, bringing the potential for ...

By tracing solar flare gamma rays, scientists gain new insight into particle behavior that shapes space weather forecasts.

The massive sunspot that sparked an "extreme" geomagnetic storm in May 2024 unleashed hundreds of other dangerous solar ...

A rare blast from the sun has just pushed radiation in Earth’s atmosphere to levels not seen in nearly two decades, briefly turning the sky itself into a harsher place for high‑altitude flyers and ...

Editor's note: This article was updated on Nov. 12 at 11 a.m. after two of the three incoming CMEs hit Earth overnight. The combined solar outbursts triggered a severe G4 geomagnetic storm, resulting ...

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 ...

An international team of researchers tracked the active solar region using the Solar Orbiter spacecraft, a joint NASA and European Space Agency mission that orbits the Sun on an elliptical path to ...

Cryptocurrency investors face an unusual danger lurking 93 million miles away. Solar flares, massive bursts of energy from the sun’s surface, can interfere with the digital infrastructure that keeps ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A spot on the sun 10 times larger than Earth has been seen ...