Science

What Is a Geomagnetic Storm? NOAA's G-Scale Explained

The same space-weather event that makes auroras visible farther south can also disturb GPS, radio, satellites and high-voltage power systems.

The Daily NewsfrontJuly 12, 2026

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Daily Briefing

July 12, 2026

Learn what causes geomagnetic storms, what NOAA's G1-to-G5 scale measures, which technologies can be affected and what ordinary people should do.

Tianwen-2 has reached Kamoʻoalewa and returned the first close-up image of the small near-Earth asteroid ahead of a planned sample-return attempt.

A concise science explainer on earthquake rubble survival, rescue timing, and the safety steps that matter before and during a quake.

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