James Webb reveals two completely different twilights on an alien world
Astronomers using the James Webb Space Telescope have discovered significant atmospheric differences between the dawn and dusk sides of the exoplanet WASP-121 b. The findings suggest that powerful winds transport heat, creating distinct temperature and chemical profiles across the planet's terminators.
Why it matters
This discovery validates theoretical models of exoplanetary atmospheres and demonstrates the advanced capabilities of the JWST in characterizing distant worlds.
Astronomers using the James Webb Space Telescope (JWST) have uncovered striking differences between the dawn and dusk regions of the ultra-hot exoplanet WASP-121 b. These boundary zones, known as terminators, mark the transition between the planet's permanent day side and permanent night side. The findings provide the clearest evidence yet that the two regions have different temperatures and atmospheric compositions, confirming predictions that had previously existed only in theoretical models.
The article provides a factual summary of scientific findings published by researchers.
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