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James Webb Telescope Detects Carbon Dioxide In Exoplanet

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NASA's James Webb Space Telescope has discovered carbon dioxide in the atmosphere of an exoplanet - a planet outside our solar system.

This observation of a gas giant planet 700 light-years from Earth, circling a Sun-like star, sheds light on the planet's makeup and formation.

The discovery, which has been accepted for publication in the journal Nature, 

Proves that Webb might one day be able to identify and measure carbon dioxide in the thinner atmospheres of smaller, rocky planets.

The exoplanet, WASP-39 b, is a hot gas giant with a diameter that is 1.3 times larger than Jupiter and a mass that is around one-fourth that of Jupiter.

Its high temperature is partly responsible for its considerable puffiness (about 1,600 degrees Fahrenheit or 900 degrees Celsius). 

WASP-39 b orbits relatively close to its star, in contrast to the colder, more compact gas giants in our solar system.