JWST Provides Details of Exoplanet’s Atmosphere

Recently, the James Webb Space Telescope (JWST) provided unprecedented details of the atmosphere of a distant exoplanet, WASP-39 b. It is a ‘hot Saturn’ (a planet about as massive as Saturn but in an orbit tighter than Mercury) orbiting a star some 700 light-years away.

  • Astronomers have studied WASP-39 b’s atmosphere before, using the Webb, Hubble and Spitzer space telescopes. The newest analysis from Webb, however, provides details never seen before.
  • The latest readings provide a full menu of atoms, molecules and even signs of active chemistry and clouds.

Key Points

  • Sulfur Dioxide: One of the key observations is the first ....
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