The James Webb Space Telescope has used spectroscopy technology to make the discovery on an exoplanet - a first outside of the Earth's solar system.
WASP-39 b is very hot and is likely to be tidally locked, with one side facing the star at all times.abc.net.au/news/nasa-james-webb-finds-co2-on-exoplanet/101374566Could there be life on faraway planets? A new discovery by NASA has taken researchers one step closer to finding out.
NASA’s James Webb Space Telescope has captured the first clear evidence of carbon dioxide in the atmosphere of a planet outside the Earth's solar system. The finding was on WASP-39 b, a gas giant discovered in 2011 which has a mass about the same as Saturn, a diameter 1.3 times greater than Jupiter and is orbiting a Sun-like star 700 light-years away.Unlike the cooler, more compact gas giants in the Earth's solar system, WASP-39 b orbits very close to its star – about one-eighth the distance between the Sun and Mercury – completing one circuit in slightly more than four Earth days.
from other telescopes, including NASA's Hubble and Spitzer space telescopes, revealed the presence of water vapour, sodium, and potassium in the planet's atmosphere.James Webb Space Telescope Transiting Exoplanet Community Early Release Science team member Zafar Rustamkulov said as soon as the data hit their screen a "whopping carbon dioxide feature" grabbed him.
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