在土星诸多的卫星中，和那充满碳氢化合物的兄弟土卫六不同，土卫二作为又一颗可能存在液态水的星球，引得整个天文界对它众说纷纭。
Enceladus , another of Saturn 's many moons , has the astronomy world abuzz with its potential to hold water , unlike its hydrocarbon-rich sister .
液态星球