Coronal Mass Ejections (CMEs): Large expulsions of plasma and magnetic field from the Sun’s corona that can drive shock waves and significantly affect the heliospheric environment.

High school students across the U.S., including 10 from Morrison High School, have been part of a project that has detected radio waves associated with solar disturbances using $500 antenna kits, ...

Just last month, a powerful solar storm lit up skies across the northern hemisphere, producing vivid auroras visible as far ...

Aurora chasers, keep your eyes on the skies this weekend as northern lights might be possible at mid-latitudes.

Sunspot region 4114 has unleashed its most powerful solar flare yet — an X1.9 class that erupted late June 19, triggering ...

Coronal Mass Ejection (CME): A large-scale expulsion of plasma and magnetic field from the Sun’s corona, capable of driving geomagnetic storms upon interacting with Earth’s magnetosphere.

He noted that a coronal mass ejection can take from 1 to 3 days to reach Earth, depending on its speed, and significant impacts may occur if it is heading directly towards our planet.

Images from NRL's LASCO C3 coronagraph showing the "halo" coronal mass ejection that caused the G4 geomagnetic storm on May 31, 2025. NRL's LASCO instrument has been operating in space since 1996 ...

A coronal mass ejection (CME) followed the flare but is not expected to hit Earth. More solar activity is anticipated from sunspot AR4046 and AR4048, with a 15% ch ...

Some northern U.S. states might have an opportunity to see the northern lights Friday, and a recent coronal mass ejection will likely bring the phenomenon to more areas this weekend, according to ...