“This raises our measure of confidence in a geomagnetic storm,” the SWPC wrote on X. Ahead of the CME’s expected arrival, the SWPC has issued a G3 geomagnetic storm watch through ...

This has caused the Space Weather Prediction Center to issue a strong geomagnetic storm watch. A Coronal Mass Ejection (CME) is a swath of magnetic energy shot out of the sun. When this energy ...

However, red alerts persisted into the darker night with solar activity peaking at around 22:00 BST in a "severe geomagnetic storm", reaching level four out of five on the geomagnetic storm scale.

Forbes contributors publish independent expert analyses and insights. Jamie Carter is an award-winning reporter who covers the night sky.

Departamento de Ciencias, Universidad Pública de Navarra, Pamplona 31006, Spain ...