Earth’s magnetic field absorbed a glancing punch from the Sun this past weekend, registering a planetary K-index of 4 on both days. That put geomagnetic activity one notch below the Kp 5 threshold ...

Sunspot AR4618 erupted with an M4.4-class solar flare causing a coronal mass ejection (CME) that may give Earth a glancing ...

A University of Iowa-led physics team has detailed the extreme expansion of a magnetic cloud that originated from a huge, gaseous explosion on the sun. In a new study, the researchers describe the ...

A trio of major solar flares triggered radio blackouts across Earth and may spark impressive northern lights as possible solar storms head our way.

The northern lights may be visible overnight from 25 U.S. states early on Saturday, June 13, after a coronal mass ejection ...

A coronal mass ejection is a massive burst of plasma and magnetic energy from the sun that can light up Earth’s skies with auroras, or disrupt satellites and power grids if it’s strong enough. It’s ...

An artificial buffer composed of a photoionizing material released into space at the edge of Earth’s magnetic field could ...

SOLAR‑1 speeds space‑weather warnings to about 30 minutes, helping aurora forecasts and infrastructure alerts.