James Webb Space Telescope sees Jupiter moons in a new light

July 27, 2023

Gany_io_nogrid750px A spectroscopic map of Ganymede (left) derived from JWST measurements shows light absorption around the poles characteristic of the molecule hydrogen peroxide. A JWST infrared image of Io (right) shows hot volcanic eruptions at Kanehekili Fluctus (center) and Loki Patera (right). The circles outline the surfaces of the two moons. (Image credit: Samantha Trumbo, Cornell [Ganymede], and Imke de Pater, UC Berkeley [Io])

University of California, Berkeley astronomers used the James Webb Space Telescope (JWST) to reveal new details of Jupiter’s moon, Io.

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