Aurora alert — a coronal hole is spewing fast solar wind toward Earth, potentially boosting geomagnetic activity and ...

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. A massive coronal hole has ...

NASA's Solar Dynamics Observatory just spotted a massive hole on the sun called a coronal hole. The hole appears black because it's cooler than its surroundings and is responsible for high-speed ...

Coronal holes are cooler, darker regions in the sun's corona, as described by NOAA. These areas allow solar wind to escape at higher speeds. When this wind interacts with Earth's magnetosphere, it can ...

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A giant hole about the size of 60 Earths has opened up in the Sun's atmosphere, scientists say. The dark area is known as a coronal hole and can be found on the outermost region of the Sun's ...

Halfway through this period, the sun's magnetic field completely flips ... For example, in December 2023, a coronal hole wider than 60 Earths bombarded us with solar wind; and in 2022, a coronal ...

The sun recently hurled two coronal mass ejections toward Earth. The first is expected to reach us on Tuesday sparking aurora ...

A geomagnetic storm is expected this weekend when an burst of plasma and magnetic field from Sun will glance off Earth.

The Parker Solar Probe is attempting the closest ever pass of the sun’s surface on Christmas Eve. An image from the Parker Solar Probe’s WISPR instrument of a coronal streamer of the sun ...