Space Weather

Solar Activity Solar Flares Geomagnetic Storms Solar Wind Coronal Mass Ejections Solar Storms Solar Phenomena Solar Events Solar Cycle Solar Radiation

Solar Radio Burst Lasts 19 Days, Longest on Record

A fleet study links the signal to a helmet streamer energized by repeated CMEs to sharpen space‑weather alerts.

Study Finds Magnetic “Cavity” Between Earth and Moon That Shields Low‑Energy Cosmic Rays

Study Confirms Record Martian Electron Surge From 2024 Solar Superstorm

ESA Mars Orbiters Capture Record Ionospheric Surge From 2024 Solar Superstorm

Alfvén Waves Shown to Sustain Electric Fields That Power Auroral Arcs

Giant Sunspot AR4366 Keeps Firing Powerful Flares as Forecasters Watch for CME Threat

NASA Confirms Five X-Class Solar Flares From AR4366 in Three Days

Sunspot AR4366 Hurls X-Class Flares as CME Is Forecast to Brush Earth Thursday

Fast Solar Wind From Small Coronal Hole Reaches Earth, Weak Storms Possible

Solar Orbiter Pinpoints Avalanche Reconnection as Trigger of Major 2024 Solar Flare

ESA’s Proba-3 Unveils Eclipse-Quality Video of Three Solar Prominence Eruptions

Overnight Geomagnetic Storm Pushes Auroras to 50° North

Earth-Directed CME From Dec. 31 M7.1 Flare Forecast To Bring Geomagnetic Storm Tonight

NOAA Forecasts New Year’s Eve G1 Geomagnetic Storm, Boosting Aurora Odds Across Northern U.S. and U.K.

Surprise Coronal Mass Ejection From Dec. 8 X1.1 Flare Triggers Geomagnetic Storms

Geomagnetic Storm Eases as Moderate Quakes Strike Far East Russia and Xinjiang

NOAA Issues G2 Geomagnetic Storm Watch as Giant Sunspot Cluster Faces Earth

Sun Unleashes Three M-Class Flares as Activity Surges

Russian Lab Forecasts Calm Geomagnetic Field Today, Slight Rise in Solar Flares

Astronomers Confirm First Coronal Mass Ejection From Another Star