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Solar Activity

Solar Flares Geomagnetic Storms Coronal Mass Ejections Solar Storms Sunspots Auroras Solar Cycle Solar Maximum Solar Cycles Space Weather

3 ARTICLES

7h ago

Sun Emitted a Record 19-Day Radio Burst

Researchers mapped the source to a helmet streamer using a STEREO-based localization method that could help forecasters identify regions prone to repeated eruptions.

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12 ARTICLES

last wk.

NOAA Forecasts Northern Lights Chance Saturday Night Across Northern U.S. and Canada

5 ARTICLES

4w ago

NOAA Issues G2 Geomagnetic Storm Watch as March 16 CME Arrives, Expanding Aurora Potential

10 ARTICLES

2mo ago

G2 Geomagnetic Storm Alert as CMEs Approach Earth, Aurora Possible Over Northern Germany Tonight

5 ARTICLES

2mo ago

NOAA Issues G1 Geomagnetic Storm Watch as Northern Lights Possible Across 10 U.S. States

13 ARTICLES

2mo ago

Nostradamus Prophecies Go Viral as US–Israel Strikes on Iran Spur Fresh Reinterpretations

3 ARTICLES

2mo ago

Sun Registers First Spotless Days Since 2022 as New Sunspots Reappear

7 ARTICLES

3mo ago

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

4 ARTICLES

3mo ago

Rare Northern Lights Opportunity in Germany This Weekend as Solar Peak Intensifies

13 ARTICLES

3mo ago

NOAA Issues Geomagnetic Storm Watch as Auroras Likely Reach 11 U.S. States

4 ARTICLES

3mo ago

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

5 ARTICLES

3mo ago

Earth-Facing Sunspot 4366 Fires Off New X-Class Flares as Agencies Issue Geomagnetic Watch

10 ARTICLES

3mo ago

New X4.2 Solar Flare Erupts From AR4366 as Earlier CME Nears Earth

5 ARTICLES

3mo ago

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

3 ARTICLES

3mo ago

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

22 ARTICLES

3mo ago

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

Solar Activity

Sun Emitted a Record 19-Day Radio Burst

NOAA Forecasts Northern Lights Chance Saturday Night Across Northern U.S. and Canada

Two X-Class Solar Flares Hours Apart Trigger Dayside Radio Blackouts

Medieval Records and Tree Rings Pinpoint a 1200–1201 Solar Proton Event

Late CME Arrival Lowers Aurora Forecast to G1–G2 Tonight

Aurora Chances Nudge Up in Germany After Weak Solar Shockfront

NOAA Issues G2 Geomagnetic Storm Watch as March 16 CME Arrives, Expanding Aurora Potential

G2 Geomagnetic Storm Alert as CMEs Approach Earth, Aurora Possible Over Northern Germany Tonight

NOAA Issues G1 Geomagnetic Storm Watch as Northern Lights Possible Across 10 U.S. States

Nostradamus Prophecies Go Viral as US–Israel Strikes on Iran Spur Fresh Reinterpretations

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Solar Activity

Sun Registers First Spotless Days Since 2022 as New Sunspots Reappear

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

Rare Northern Lights Opportunity in Germany This Weekend as Solar Peak Intensifies

NOAA Issues Geomagnetic Storm Watch as Auroras Likely Reach 11 U.S. States

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

Earth-Facing Sunspot 4366 Fires Off New X-Class Flares as Agencies Issue Geomagnetic Watch

New X4.2 Solar Flare Erupts From AR4366 as Earlier CME Nears Earth

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

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

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Solar Activity