SMRTR Science & EngineeringNov 2, 2025Science Daily

JWST captures stunning 3D view of a planet’s scorching atmosphere

SMRTR summary

Astronomers created the first 3D temperature map of an exoplanet using JWST's advanced observations of WASP-18b, a massive gas giant 400 light-years away that reaches 5,000 degrees Fahrenheit. The breakthrough 3D eclipse mapping technique revealed distinct hot and cool zones across the planet's atmosphere, including regions so scorching that water vapor breaks apart completely.

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