Sunspot AR3663 erupted with powerful X1.6 and M4 solar flares. NASA's Solar Dynamics Observatory captured the fireworks.

Space Weather Prediction Center said a Coronal Mass Ejection (CME), a powerful burst of solar material, is on its way to Earth and expected to arrive on Dec. 9. "Coronal Mass Ejections (CMEs) are ...

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 ...

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

2025 was another busy year on the sun. But how did it compare with 2024, and what will 2026 bring for solar activity and the northern lights? When you purchase through links on our site, we may earn ...

Parker Solar Probe reached "perihelion," the nearest point to the sun in its orbit, on Dec. 13, 2025. Credit: ASA / Johns Hopkins APL / Steve Gribben illustration A NASA spacecraft is making a close ...

The sun is the biggest object in the solar system; at about 865,000 miles (1.4 million kilometers) across, it's more than 100 times wider than Earth. Despite being enormous, our star is often called a ...

The solar maximum may be over, but the sun has still been busy with activity. A powerful solar eruption is expected to hit Earth soon, according to a forecast from the National Oceanic and Atmospheric ...

The Northern Lights could put on an unusually strong showing overnight on Monday, Dec. 8, through Tuesday, Dec. 9, after a "full halo event" was forecast by the National Oceanic and Atmospheric ...

Next stop on the trail is to Fort Selden. Here we will roll up sleeves with Interpretive Ranger... Next stop on the trail is to Fort Selden. Here we will roll up sleeves with Interpretive Ranger, ...

We head to the Chiricahua Desert Museum, in Rodeo New Mexico. This museum is home to... We head to the Chiricahua Desert Museum, in Rodeo New Mexico. This museum is home to everything reptile. Live ...