Rare Hubble Portrait of Io and Jupiter
Depicts: Jupiter, Io
Copyright: J. Spencer (Lowell Observatory), and NASA
This image, shows Jupiter's volcanic moon Io passing above the
turbulent clouds of the giant planet, on July 24, 1996. The
conspicuous black spot on Jupiter is Io's shadow.
The smallest details visible on Io and Jupiter are about 100
miles across. Bright patches visible on Io are regions of sulfur
dioxide frost. Io is roughly the size of Earth's moon, but 2,000
times farther away.
Last Update: 1 September 2019