Solar Activity

Coronal Mass Ejections Geomagnetic Storms Solar Storms Solar Flares Geomagnetic Activity Coronal Holes Geomagnetic Conditions Geomagnetic Storm Watch Solar Winds Coronal Mass Ejection

3 ARTICLES

last wk.

NOAA Issues Watch for Possible G3–G4 Geomagnetic Storms That Could Bring Auroras to 23 States

Confirmation of storm strength and timing will depend on real-time DSCOVR solar-wind readings that show whether the interplanetary magnetic field turns southward.

7 ARTICLES

4mo ago

NOAA Ups Aurora Outlook: Kp 5 Could Bring Northern Lights to 15 U.S. States Tonight

7 ARTICLES

4mo ago

S4 Solar Radiation Storm, Strongest in 20 Years, Brings Rare Auroras as Effects Subside

3 ARTICLES

4mo ago

Japan Records Geomagnetic Storm Linked to X‑Class Solar Flare

10 ARTICLES

5mo ago

Aurora Outlook Tightens for Dec. 23 After Minor Storm, With Northern U.S. Still in Play

3 ARTICLES

6mo ago

Northern Lights Possible Across Northern U.S. This Weekend, With Best Odds Friday Night

6 ARTICLES

6mo ago

Geomagnetic Storm Keeps Aurora Borealis Glowing Over Northern U.S. Wednesday Night

Solar Activity

NOAA Issues Watch for Possible G3–G4 Geomagnetic Storms That Could Bring Auroras to 23 States

NOAA Ups Aurora Outlook: Kp 5 Could Bring Northern Lights to 15 U.S. States Tonight

S4 Solar Radiation Storm, Strongest in 20 Years, Brings Rare Auroras as Effects Subside

Japan Records Geomagnetic Storm Linked to X‑Class Solar Flare

Aurora Outlook Tightens for Dec. 23 After Minor Storm, With Northern U.S. Still in Play

Northern Lights Possible Across Northern U.S. This Weekend, With Best Odds Friday Night

Sun Erupts With X1.9 Flare as Largest 2025 Sunspot Complex Emerges

NOAA: Northern Lights Possible in 10 States on Thanksgiving Night

NOAA Confirms Strong G3 Geomagnetic Storm Affecting Earth

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

Geomagnetic Storm Keeps Aurora Borealis Glowing Over Northern U.S. Wednesday Night