NASA has released images of the earth's moon (above) and Io - the volcanic moon of Jupiter (below). The moon image was taken during the close flyby of the earth-moon system last month by the Cassini spacecraft en route to Saturn, proving the quality of the craft's imaging system in preparation for its arrival at the ringed planet in 2004. Meanwhile, the Galileo spacecraft orbiting the planet Jupiter has returned high-resolution images of Io, from a distance of 130,000km. Io is covered with sulphur volcanoes and produces 300km-high geysers.
Source: Flight International