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Solar Activity

Auroras Coronal Mass Ejections Solar Flares Geomagnetic Storms Aurora Borealis Parker Solar Probe Solar Wind Solar Flare Activity Sunspots Coronal Mass Ejection Forecasting Solar Flare Monitoring Solar Storms Northern Lights TRACERS Mission Suprathermal Ion Sensors

NOAA Issues G2 Geomagnetic Storm Watch as AR 4168 CME Nears Earth

Forecasters expect the CME’s glancing shock to arrive Aug. 8, bringing moderate geomagnetic storms with minor high-latitude radio blackouts.

NASA’s TRACERS Satellites Poised for Vandenberg Launch to Probe Solar-Earth Magnetic Link

X2.7 Solar Flare Prompts Global Disruptions and Aurora Forecasts

Sunspot AR4087 Produces Year’s Strongest Solar Flare, Disrupting Communications Globally

Geomagnetic Storm Sparks Widespread Aurora Displays Across Northern Hemisphere

Solar Wind Compression Heats Jupiter's Atmosphere, Revealing Global Effects

Northern Lights Expected to Illuminate Parts of Northern U.S. and Canada

Geomagnetic Storm to Illuminate Skies as Far South as New York

Earth Faces Radio Blackouts as Sun Emits Series of Powerful Flares