Pluto has a moon, Charon, half the size of the planet.
冥王星唯一的卫星卡戎，大小是冥王星的一半。
1978 - Charon, a satellite of the planet Pluto, is discovered.
1978年的今天，冥王星的冥卫一卫星被发现。
Charon, I need you to go into that chamber and turn on the purifier.
卡戎，我需要你进入那个房间打开净水装置。
We are eager to know how a system such as Pluto - Charon could form .
我们很盼望能了解像冥王星-冥卫一这样的系统如何形成。
Until last year, scientists thought Pluto was accompanied by only one moon, Charon.
直到去年，科学家还认为冥王星只有一颗卫星卡戎。
Until last year, scientists thought Pluto was accompanied by only one moon, Charon.
直到去年，科学家还认为冥王星只有一颗卫星卡戎。
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