(NEXSTAR) — On Friday night, the most significant G5 geomagnetic storm since 2003 hit Earth — causing several coronal mass ejections, or CMEs — and allowing many across the U.S. to see ...

The gigantic coronal hole is blasting high-speed solar wind toward Earth, potentially igniting vibrant auroras and minor ...

A gigantic hole has opened up in the Sun's atmosphere and is currently big enough to spot from Earth. The structure located ...

There’s a lot of talk about whether the global displays of aurora during May 10’s extreme G5 geomagnetic storm will be repeated in June. That’s because it takes 27 days for the sun to rotate ...

The latest Northern Lights forecast means the aurora borealis may be seen in the continental U.S. tonight after space weather ...

The Korea Astronomy and Space Science Institute (KASI) Solar Space Environment Group observed the G5-class geomagnetic storm that occurred from May 10 to 12 of last year through the latest ...

A massive coronal hole has opened on the sun, sending high-speed solar wind toward Earth and increasing aurora activity.

Geomagnetic storms are ranked on a scale of G1 to G5 by the National Oceanic and Atmospheric Administration (NOAA), with G5 being extreme. According to the NOAA, G1 (minor) conditions were ...

The solar wind escaping from this coronal hole — the diameter of which measures over 62 times that of the diameter of Earth — ...