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. An artist’s impression of the hot-Jupiter exoplanet HD 189733b. Image credit: Roberto Molar Candanosa / Johns Hopkins University. 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...
