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An artistic rendering of a dust and gas disk encircling the young exoplanet (lower right), CT Cha b, 625 light-years…

NASA’s James Webb Space Telescope has provided the first direct measurements of the chemical and physical properties of a potential…

Astronomers using NASA’s James Webb Space Telescope have found a brown dwarf (an object more massive than Jupiter but smaller…

Discover the makeup of four active Solar System moons, worlds unto themselves with unique, dynamic environments. The ice worlds of…

Artist's Illustration of Possible Moon Outside Our Solar System This is an artist's illustration of the gas giant planet Kepler-1625b…
This diagram represents Hubble Space Telescope photometric observations of the planet Kepler-1625b passing in front of its parent star —…

This is an artist's interpretation of the gas giant planet Kepler-1625b and a suspected accompanying moon. Estimated to be as…

This animation represents the Hubble data and their best-fit light curve for the transit of exoplanet Kepler-1625b and its possible…

The Hubble and Kepler space telescopes found evidence for what could be a giant moon accompanying a gas-giant planet that…