Jupiter's Volcanic Moon Io
Depicts: Jupiter, Io
Copyright: J. Spencer (Lowell Observatory) and NASA
Measurements at two ultraviolet wavelengths indicate that the ejecta consist of sulfur dioxide "snow," making the plume appear green in this false-color image. Astronomers increased the color contrast and added false colors to the image to make the faint plume visible.
Last Update: 1 September 2019
