Major X5.0 solar flare erupts from Region 3536 — the strongest flare of Solar Cycle 25

A major X5.0 solar flare erupted from Active Region 3536 at 21:55 UTC on December 31,…

Multiple M-class solar flares and CMEs, possible CME impact on December 27

Multiple M-class solar flares and CMEs were recorded on December 24, 2023. Forecasts indicate potential geomagnetic…

Moderately strong M4.2 solar flare erupts from Region 3519

A moderately strong solar flare measuring M4.2 erupted from Active Region 3519 at 05:38 UTC on…

Major X2.8 solar flare erupts from Region 3514

A powerful solar flare measuring X2.8 erupted from Active Region 3514 at 17:02 UTC on December…

M5.8 solar flare and multiple CMEs, minor geomagnetic storms expected by December 16

Solar activity increased to high levels in 24 hours to 12:30 UTC on December 14, 2023,…

Impulsive M5.4 solar flare erupts from Region 3511, multiple filament eruptions

An impulsive solar flare measuring M5.4 erupted from Active Region 3511 at 23:07 UTC on December…

Multiple CMEs impact Earth, sparking G3 – Strong geomagnetic storm

Multiple coronal mass ejections (CMEs) produced on November 27 and 28, 2023, impacted Earth on November…

Multiple CMEs heading toward Earth, G3 – Strong Geomagnetic Storm Watch in effect

Multiple coronal mass ejections (CMEs) produced on November 27 and 28, 2023 are heading toward Earth,…

M9.8 solar flare erupts from geoeffective Region 3500, Earth-directed CME likely

A very strong solar flare measuring M9.8 erupted from Active Region 3500 at 19:50 UTC on…

Two CMEs strike Earth, producing G3 – Strong geomagnetic storm

Two coronal mass ejections (CMEs) impacted Earth on September 18, 2023, producing G3 – Strong geomagnetic…