The sun's returning coronal hole could stir up geomagnetic storms and dazzling auroras under clear, dark skies this weekend.

Fast solar wind from a massive coronal hole in the sun could trigger dazzling auroral displays as geomagnetic activity is predicted to ramp up again over the weekend. When you purchase through links ...

What is a Coronal Hole? NASA has discovered a massive butterfly-shaped coronal hole on the Sun. Learn about these coronal ...

A coronal hole more than 35 times wider than the Earth has appeared on the surface of the sun, and it could spark aurora in Alaska, parts of Canada and perhaps even the far northern United States.

A massive coronal hole on the Sun is directing a stream of solar wind towards Earth this week, expected to arrive between ...

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 ...

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 ...

According to a new Physical Review Letters study, black holes could help solve the dark matter mystery. The shadowy regions ...