在土卫六上，甲烷可以形成云甚至降雨。
在土星最大的卫星土卫六上，科学家们发现其表面的布满液态甲烷的积洼，这些甲烷会造成有如豌豆汤一样的浓雾，而且气味更是糟到家了！
The scientists found that Titan, Saturn's largest moon, is covered with puddles of liquid methane, which give rise to a fog that's as thick as pea soup -- and smells a whole lot worse.
在土卫四的背后，可以看到在模糊的土卫六北极上的大气带的迹象，土卫六是目前仅知的具有完全成熟大气层的卫星。
Behind Dione, hints of atmospheric banding can be seen on the North Pole of hazy Titan, the only known moon with a fully developed atmosphere.
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