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Sunspots

Solar Flares Active Regions Coronal Mass Ejections X-class Flares Solar Cycles Geomagnetic Storms Magnetic Fields Solar Cycle Sunspot AR 3664 Earth Impacts Sunspot AR3664 Historical Observations AR4366 AR3842 Hyperactive Sunspot AR3664 Historical Events Impact on Earth Technology Impact Sunspot Region 4087 AR4087 Sunspot Regions Solar Flare Classification AR4294 Group 4246 AR4274 AR 4366 Region 4274 Solar Maximum Forecasting Techniques Active Region 4455 Anti-Hale Sunspots

Sun's M6.9 Flare Sends Earth‑Directed CME as NOAA Issues G1 and G2 Storm Watches

A high‑speed coronal‑hole wind may amplify a glancing CME, raising geomagnetic activity with greater aurora chances.

Researchers Identify Solar 'Switch‑Off' That Could Forecast Space Weather Years Ahead

Cannibal Solar Storm From Sunspot 4455 Set to Reach Earth

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

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

X1.2 Solar Flare from AR4114 Disrupts Pacific Radio Communications