Satellite News

Universe TodayCarolyn Collins Petersen

JWST probes Uranus' ionosphere, maps vertical structure and detects faint auroras

Uranus' extreme 97.8° axial tilt let JWST's NIRSpec probe the planet's ionosphere, producing the first vertical maps of its upper atmosphere and revealing faint auroral emissions. An international team used near‑infrared spectroscopy to resolve how temperature and charged‑particle densities change with altitude.

2026-02-27T09:17:01.621697-08:00

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