The sun is not only our closest stellar neighbor, it's also the star we understand the most. As we've observed it over the ...

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

A new solar storm is approaching. In 2025 there were several, but they did not have serious consequences. Now, the US ...

A G2 storm, rated “moderate” on the five‑tier NOAA scale, can induce voltage irregu­larities in power systems and affect high ...

A single patch on the Sun recently stayed hyperactive for 94 straight days, hurling flare after flare into space and setting ...

Researchers followed a single solar hotspot for 3 months as it unleashed nearly 1,000 flares, revealing insights about our Sun's fury.

An international team of researchers tracked the active solar region using the Solar Orbiter spacecraft, a joint NASA and ...

Earth is facing a double coronal mass ejection impact today, January 3, 2026, potentially triggering G2-class geomagnetic ...

Scientists have issued alerts for approaching solar or geomagnetic storms, which are set to hit Earth this week and will produce bright, stunning displays of light known as auroras over parts of the ...

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 ...

Learn about the longest observation of an active solar region, a feat that could start a path to improved solar storm ...