Like Earth's moon, Saturn's largest moon Titan is locked in synchronous rotation. This mosaic of images recorded by the Cassini spacecraft in May of 2012 shows its anti-Saturn side, the side always facing away from the ringed gas giant. The only moon in the solar system with a dense atmosphere, Titan is the only solar system world besides Earth known to have standing bodies of liquid on its surface and an earthlike cycle of liquid rain and evaporation. Its high altitude layer of atmospheric haze is evident in the Cassini view of the 5,000 kilometer diameter moon over Saturn's rings and cloud tops. Near center is the dark dune-filled region known as Shangri-La. The Cassini-delivered Huygens probe rests below and left of center, after the most distant landing for a spacecraft from Earth.?

像地球的衛(wèi)星一樣，土星最大的衛(wèi)星泰坦也被鎖定在同步旋轉(zhuǎn)中。2012年5月，卡西尼號(hào)宇宙飛船拍攝的這幅馬賽克圖像顯示了它的反土星一面，這一面總是背對(duì)著環(huán)形氣體巨星。土衛(wèi)六是太陽(yáng)系中唯一一顆大氣層稠密的衛(wèi)星，是除地球外唯一已知的太陽(yáng)系星球，其表面有直立的液態(tài)物體，以及類似地球的液態(tài)雨和蒸發(fā)循環(huán)。在卡西尼號(hào)拍攝的土星環(huán)和云頂上方直徑5000公里的衛(wèi)星照片中，可以明顯看到它的高海拔大氣薄霧層?？拷行牡氖潜环Q為香格里拉的黑暗沙丘地區(qū)?？ㄎ髂崽?hào)運(yùn)載的惠更斯探測(cè)器在距離地球最遠(yuǎn)的航天器著陸后，停在中心下方和左側(cè)。