After a journey of seven years and 2.2 billion miles, the spacecraft Cassini, with a probe named Huygens aboard, reached Saturn in July 2004, beginning a four-year tour to observe the remote planet, its rings, and its moons in depth. As a result of the spectacularly succesful Cassini-Huygens mission, photographs of astounding beauty have come streaming back to Earth, together with enough data... (read more)