James Webb telescope finds first evidence of carbon dioxide on an exoplanet

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Aug. 25 NASA's James Webb telescope caught the principal obvious proof of carbon dioxide in the environment of a planet beyond the nearby planet group, the space organization said Thursday.

Title WASP-39 b is an exoplanet that orbits a Sun-like star 700 light-years from Earth. It is a hot gas giant with a mass roughly equal to that of Jupiter.3

Discovery of such a strong carbon dioxide signal on WASP-39 b is encouraging for the search for atmospheres on smaller, terrestrial-sized planets, according to Natalie Batalha of the University of California at Santa Cruz, who headed the study team.

A wider research that also included observations of two other transiting planets was conducted by the team using Webb's Near-Infrared Spectrograph, or NIRSPec

When WASP-39 b was discovered in 2011, observations from earlier telescopes showed that the exoplanet's atmosphere contained water vapour, sodium, and potassium.