Webb Detects Hydrogen Sulfide in Atmosphere of Hot Jupiter

Webb Detects Hydrogen Sulfide in Atmosphere of Hot Jupiter

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have detected trace amounts of hydrogen sulfide in the atmosphere of the Jupiter-sized exoplanet HD 189733b. HD 189733b is a hot gas giant with a hazy atmosphere mainly composed of hydrogen. It is some 63 light-years away toward the constellation of Vulpecula. The planet was discovered in 2005 by astronomers using two telescopes at the Haute-Provence Observatory. HD 189733b is only 1.2 times bigger than Jupiter but in very close orbit around …