The Sun is covered in dark patches bigger than Earth. A powerful flare has already erupted, with more likely coming.

Scientists can usually spot coronal mass ejections before they affect Earth—but this one snuck past coronagraphs and satellites.

A powerful X1.9 solar flare from new sunspot AR4299 triggered strong radio blackouts, as giant sunspot AR4294 rotates into ...

New research has revealed that the secrets of the sun's magnetic field, which has remained shrouded in mystery for four centuries, could lie close to its surface. The sun's magnetic field is ...

What: A major coronal hole on the Sun is releasing high-speed solar wind toward Earth, driving recent auroral activity and space weather disturbances. Coronal holes are cooler regions where the Sun’s ...

A giant hole has opened in the atmosphere of the Sun, and it's blasting out a high-speed wind that is directed right at Earth. The incoming blast of solar particles is worth getting excited about: ...

A massive coronal hole has formed in the sun's atmosphere, unleashing a powerful stream of solar wind toward Earth. Nearby, a second, slightly smaller coronal hole is also directing solar wind our way ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

Break out your eclipse glasses and tilt your head toward the sky -- a total solar eclipse is happening today! Ok, so we’re not exactly going to get the full experience here in Southern California -- ...

Such regions are known by scientists as coronal holes. They are areas where the Sun's magnetic fields have opened up, allowing solar wind to escape freely into space. Coronal holes, which are most ...

A massive hole some 62 times wider than the Earth has opened up in the Sun's atmosphere—and it could lead to aurora over the U.S. NASA captured a photograph of the roughly 497,000-mile-wide phenomenon ...

Our solar system might be chock-full of tiny black holes, with some tracing out beautiful patterns resembling Spirograph drawings as they orbit inside the sun. Invisible dark matter seems to account ...