Context:
The James Webb Space Telescope (JWST) has helped scientists study weather patterns on WASP-94A b, a gas-giant exoplanet about 700 light years away. The study observed changing cloud patterns, temperature differences and atmospheric composition on the planet.
Explanation:
- Exoplanets are planets located outside our Solar System, orbiting stars other than the Sun.
- JWST studies exoplanet atmospheres using spectroscopy, where starlight passing through a planet’s atmosphere reveals chemical composition. The transit method is used when a planet passes in front of its star, causing a temporary dip in starlight.
- The study found weather-like patterns, including clouds of silicate, iron and magnesium sulphide.
- Understanding exoplanet atmospheres helps scientists study planet formation, atmospheric chemistry and habitability.
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James Webb Telescope and Exoplanet Weather Studies