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James Webb Telescope Maps Asymmetry in Puffy Exoplanet's Atmosphere

NASA's JWST reveals significant east-west differences in the atmosphere of the unusually inflated exoplanet WASP-107b.

  • WASP-107b, a gas giant discovered in 2017, has an unusually puffy atmosphere with only 10% of Jupiter's mass.
  • The James Webb Space Telescope (JWST) created a detailed three-dimensional map of the exoplanet's atmosphere.
  • Researchers found a pronounced asymmetry between the eastern and western halves of WASP-107b's atmosphere.
  • This asymmetry may be due to differences in cloud cover or heat distribution across the planet.
  • The study, published in Nature Astronomy, marks the first observation of east-west atmospheric differences in an exoplanet from space.
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