The James Webb Space Telescope will map the atmosphere of exoplanets

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Exoplanets, planets that orbit stars other than the sun, are found at distances very far from Earth. For example, the closest exoplanet to us, Proxima Centauri b, is 4.2 light-years away, or 265,000 times the distance between the Earth and the sun.

To the naked eye, the planets in the solar system appear as bright spots. However, using a telescope, these dots stand out from the stars and reveal structures such as Jupiter’s Great Red Spot, Saturn’s rings, or the ice caps of Mars.





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