Cassini: and yet it spins
GUY GAGLIOTTA The results of the flight of the Cassini spacecraft, NASA's risky project, exceed all expectations. In the six years that Cassini has been orbiting Saturn, two new rings of the planet, several new moons, and a new class of small satellites have been discovered. On one of the satellites, Titan, liquid lakes were found, on the other, Enceladus, geysers and water in the form of ice.