The inaugural use of SWPC’s Space Weather Prediction Testbed took place in spring 2025 during a multi-agency exercise preparing for NASA’s Artemis II mission.

A geomagnetic storm, also known as a magnetic storm, is a temporary disturbance of the Earth's magnetosphere that is driven by interactions between the magnetosphere and large-scale transient …

May 12, 2025 · A geomagnetic storm is a space weather event caused when the Sun shoots out a burst of charged particles that hit Earth’s magnetic field. This can shake up our atmosphere, mess with …

Dec 9, 2025 · Geomagnetic storm, disturbance of Earth’s upper atmosphere brought on by coronal mass ejections—i.e., large eruptions from the Sun’s outer atmosphere, or corona. The material associated …

3 days ago · Scientists have pulled back the curtain on one of the most extreme solar regions seen in decades, tracking it almost nonstop for three months as it unleashed powerful space weather. By …

Jan 9, 2026 · The massive sunspot that sparked an "extreme" geomagnetic storm in May 2024 unleashed hundreds of other dangerous solar flares, including a hidden X-class outburst, a new …

May 9, 2025 · One year on, NASA scientists are still making huge discoveries about the largest geomagnetic storm to hit Earth in two decades, the Gannon storm. The findings are helping us better …

Nov 12, 2025 · A severe geomagnetic storm could cause widespread disruption to infrastructure technology and make northern lights visible for much of the northern half of the U.S.

May 28, 2025 · Geomagnetic storms are triggered by bursts of solar wind, streams of charged particles, mainly electrons and protons, that flow outward from the Sun. These particles interact with the Earth’s...

Oct 30, 2025 · Geomagnetic storms are formed when solar wind, a stream of charged particles emitted by the sun, interacts with Earth’s magnetosphere. When the solar wind reaches Earth, it can cause …