EVEN a cursory glance at Saturn's moon Iapetus reveals it to be an oddball.
甚至只是对于土星的卫星土卫八粗略地一瞥，也足以表露出它的古怪。
What has happened to Saturn's moon Iapetus?
究竟土星的卫星土卫八发生了什么事？
The ring may answer the riddle of another moon, Iapetus, which has a bright side and a very dark side.
这道光环也可以解开另一个卫星“土卫八” （Iapetus）的迷团。 “土卫八”一侧发光，另一侧很暗。
Even a cursory glance at Saturn's moon Iapetus reveals it to be an oddball.
对土星的卫星伊阿珀托斯(Iapetus，土卫八)即便是匆忙一瞥，也会发现它奇特不已。
According to the scientists, some of the dark and dusty material from the outer ring moves inward toward Iapetus, slamming the icy moon like bugs on a windshield.
这提示科学家：就像虫子落在挡风玻璃上一样，外环中的黑暗尘埃微粒也会移向土卫八，并溅落在其冰冻表面上。
This mini-moon then started to fall back towards Iapetus, they argue.
科学家们认为，之后这个小卫星又开始向土卫八坠落。
The discovery offers a possible solution to the mystery of the moon Iapetus.
这个发现给土卫八之谜提供了一个可能的解释。
The movie then zooms back into the system to show the orbit of the moon Iapetus in blue.
视频接着回到蓝色的土卫八轨道展示了土星系统。
The movie then zooms back into the system to show the orbit of the moon Iapetus in blue.
视频接着回到蓝色的土卫八轨道展示了土星系统。
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