NASA's JWST unveils secrets of Jovian moons Io and Ganymede
Image Credit: NASA
The James Webb Space Telescope (JWST) has uncovered new information about Jupiter's moons Io and Ganymede. Webb's onboard Near-Infrared Spectrograph instrument has, for the first time, detected sulfur monoxide gas on Io, the most volcanically active world in the solar system. On Ganymede, the largest moon in the solar system, Webb made the first discovery of hydrogen peroxide in the moon's polar regions.