Saturn's retrograde renegade

摘要

Data from the Cassini-Huygens mission provide convincing evidence that the saturnian moon Phoebe formed elsewhere in the Solar System, and was only later captured by Saturn's gravitational pull. In the next few years, the Cassini-Huygens spacecraft will return a wealth of data from its orbital tour of Saturn's rings and moons. Although many images are released to the public almost immediately, it takes time to conduct detailed scientific analyses of the observations. Stunning results from early encounters with the moons are now beginning to tricklein.