Jupiter Galilean Satellites NASA Poster

This is a NASA space collage of the planet Jupiter and four of its moons. These planet-sized moons are known as the Galilean satellites. Io is at the upper left, Europa in the centre, Ganymede in front, and Callisto to the lower right (some parts of the image may not be visible on all products). The photographs used in this image were taken by the Voyager 1 spacecraft. Image Credit: NASA | Credit: NASA Planetary Photojournal There are more products with this space photograph in The Astronomy Gift Shop store.