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An artistic rendering of a dust and gas disk encircling the young exoplanet CT Cha b. Image credit: NASA / ESA / CSA / STScI / G. Cugno, University of Zürich & NCCR PlanetS / S. Grant, Carnegie Institution for Science / J. Olmsted, STScI / L. Hustak, STScI.

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Webb Discovers Exomoon-Forming Circumplanetary Disk around Gas-Giant Exoplanet

September 29, 2025

Astronomers using the NASA/ESA/CSA James Webb Space Telescope have found the carbon-rich disk surrounding CT Cha b, a…