Science ❯ Astronomy ❯ Solar Phenomena ❯ Coronal Mass Ejections

Geomagnetic Storms

Solar Cloud Expected to Brush Earth, Northern Lights Possible in Northern U.S.

Forecasters warn geomagnetic activity could push the aurora farther south as agencies watch the storm's magnetic orientation.

NOAA Flags Feb. 5 Aurora Chance for Northern Germany as Sunspot AR4366 Erupts

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

G3 Geomagnetic Storm Possible Today as Full-Halo CME Reaches Earth

Auroras Sweep the U.S. After G4 Storm as Forecasters Watch for More Activity Into Thursday

Severe Geomagnetic Storm Pushes Auroras to Unusually Low Latitudes as Forecasts Flag Further CME Risk

Severe Solar Storm Ignites Auroras as Forecasters Track Third, Stronger CME

NOAA Issues Strong Geomagnetic Storm Watches as CMEs Near Earth, Raising Aurora Odds

Strong Geomagnetic Storm Triggers Widespread Aurora With More Possible Tonight

Aurora Forecast Raised to G1 With Chance of G2 as Twin CMEs Reach Earth

Cannibal CME Triggers G2 Geomagnetic Storm as Auroras Spill South

G2 Geomagnetic Storm Watch Expands Northern Lights Visibility to 15 States

X1.2 Solar Flare from AR4114 Disrupts Pacific Radio Communications

Minor Geomagnetic Storm Could Bring Northern Lights to Northern U.S. States

Geomagnetic Storm Fuels Northern Lights Across U.S.; Tuesday’s Visibility Dims Outside Alaska

Solar Storm to Illuminate Northern Lights Across Northern U.S. States This Weekend

Northern Lights Expected to Illuminate Skies Across Northern U.S. on Christmas Night

Thanksgiving Solar Storm Brings Rare Northern Lights Viewing Opportunity Across U.S.

Severe Geomagnetic Storm Threatens Communications and Power Grids

Earth Braces for Powerful Geomagnetic Storms from Solar Eruptions