in 62 revolutions around Saturn, 43 flybys of Titan -- whose strange landscape has given scientists a glimpse of what an infant Earth may have been like --- and 12 close flybys of the smaller, icy moons.One of these moons, Enceladus, is especially beguiling, as it may have liquid water beneath its pristine, frozen shell.The two-year extension means Cassini will make 60 additional orbits of Saturn,