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Health & Science3h 4m ago
JWST observations suggest that the two day-night boundary zones on the gas exoplanet WASP-121 b are chemically different from each other.
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WASP-121 b (exoplanet)
Who
Astronomers, Cyril Gapp, Tom Evans, James Webb Space Telescope (JWST)
What
JWST observations suggest that the two day-night boundary zones on the gas exoplanet WASP-121 b are chemically different from each other.
When
Tue, 16 Jun 2026 05:28:00 GMT · 3h 4m ago
Where
WASP-121 b (exoplanet) ·
Why
Scientists had long suspected that an exoplanet's sunrise and sunset regions might not share the same temperatures or chemical makeup, and this study offers the clearest evidence so far that those differences are real.
The Frontline Impact
How this affects you
This finding provides an unusually detailed view of weather and atmospheric circulation on an exoplanet and offers a better way to build three-dimensional maps of alien atmospheres. The data also suggests mineral clouds may be cooling the morning side more than previously predicted.
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2 events in this thread- Health & Science3h 4m agoJames Webb Space Telescope observations suggest that the two day-night boundary zones on the gas exoplanet WASP-121 b are chemically different from each other.Open article
- Currently Reading3h 4m agoJWST observations suggest that the two day-night boundary zones on the gas exoplanet WASP-121 b are chemically different from each other.