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Atmospheric Effects

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Japan Observers Find Red Auroras Reach 500–800 km

Dense solar wind compression of Earth’s magnetosphere may have pushed auroral emissions higher, raising risks for low Earth orbit satellites.

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

Record 94-Day Watch of Solar Region That Drove 2024’s Fiercest Storms

Geomagnetic Storm Hits G3 as Earth‑Directed CME Approaches

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