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Webb Telescope Reveals Nearby Exoplanet Has No Atmosphere

TRAPPIST-1b is a superhot rocky world just 40 light-years away. Astronomers recently trained the Webb Space Telescope this exoplanet, a world in the TRAPPIST-1 star system, and found that it’s devoid of an atmosphere.The finding could…

Webb Telescope Spots Exoplanet With ‘Gritty’ Clouds

The Webb Space Telescope just turned its infrared gaze at an exoplanet and found dense clouds swirling in the atmosphere of this quirky world.The planet—VHS 1256b—has a 22-hour day but sits extraordinarily far from the two stars it

Webb Space Telescope Finds Its First Exoplanet

An artist’s impression of the exoplanet, LHS 475 b, and the star it orbits.Illustration: NASA, ESA, CSA, L. Hustak (STScI)The incredibly powerful Webb Space Telescope—which has fed us dazzling images of the cosmos since July—has

Two Distant Planets Could Be Filled With Water

An artist’s rendition of the Kepler-138 system, with the Earth-like water world Kepler-138d in the foreground.Illustration: NASA, ESA, L. Hustak (STScI)Astronomers using the Hubble Space Telescope have observedtwo exoplanets that may be