A huge sun eruption combines with speedy solar wind from a "coronal hole" for a weekend aurora show, experts predict.

Auroras are possible over the U.S. tonight (March 25) as a "moderate" geomagnetic storm hits Earth. UPDATE: The Northern ...

This activity is connected to a fast-moving coronal mass ejection, or CME, that left the Sun on Friday. According to SWPC’s ...

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 ...

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 ...

Two giant holes appeared on the sun's surface. They're called coronal holes, and they'll send solar winds toward Earth, revealing stunning northern lights. More from News Two giant holes appeared ...

NOAA Coronal holes form in the outermost layer of the sun when the local magnetic field opens up, allowing the solar wind to escape at a much faster rate than usual. Because of this escaping ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. The northern lights over Krasnoyarsk, Russia on Jan. 1. Two sun events have combined that ...