# aurora

NOAA Issues Alert After X‑Class Solar Flare; Minor Geomagnetic Storms Expected

NOAA warned that an X4.2 solar flare on Feb. 4 produced a G1 (minor) geomagnetic storm on Feb. 5, with further G1 activity possible on Feb. 6 and 8. Impacts are expected to be modest — chiefly HF radio interference, potential satellite anomalies and high‑latitude auroras — but the episode underscores growing space‑weather risks as active solar regions face Earth.

NeTe2026年2月6日 06:40

#solar flare#NOAA#geomagnetic storm

Captivating view of green aurora borealis lighting up the night sky above a mountain silhouette.

Science

Spectacular Auroras Over China as a Major Geomagnetic Storm Rocks Earth

A major geomagnetic storm caused auroras to appear across large swathes of China, delighting onlookers but also raising concerns about impacts to satellites, communications and power systems. The event highlights ongoing solar activity and the need for robust space-weather monitoring and infrastructure resilience.

NeTe2026年1月20日 17:20

#geomagnetic storm#aurora#space weather