Asteroids are also called minor planets, not to be confused with dwarf planets like Pluto.

小行又被成为微行，不要把它和像冥样的矮行混淆了。

Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto.

水、金、球、火、木、土、天、海和冥。

That's it! Pluto just needs some motivation.

对了！布鲁托需要一些激励。

That's about the same distance as 337 round trips from Earth to Pluto.

当于从球到冥返337次的距离。

That’s about the same distance as 337 round trips from Earth to Pluto.

当于从球到冥返337次的距离。

It's a " Marsing" and a sight for Pluto who would pan it.

看到冥和火吵了起来。

We now know there's water on the Moon, on Mars, Pluto.

我们现在知道月球、火、冥上都有水。

Today, we tell about Percival Lowell whose work led to the discovery of Pluto.

今天，我们讲述珀西瓦尔·洛厄尔的故事，他的工作导致了冥的发现。

He died long before the search for Planet X resulted in the discovery of Pluto.

早在寻找行X并最终发现冥之前，他就去世了。

I told you, I want to file a declaration that Pluto is a planet.

我说了 我要填写冥是行的声明。

Dad, pluto isn't a planet. It's shrinking because of corporations.

爸 冥不是一颗行 大公司在让它不断缩小。

Check out the bracelet, it's pretty cool, and it even includes Pluto!

看看个手镯，它很酷，它甚至还有一个冥！

But, as Project Pluto's designers found, that is tricky to fit in a missile.

但根据冥计划设计者的发现，对于导弹来说是很棘手的。

Yeah, hold on. Phone for you, Pluto.

等会，找你的电话，普鲁托。

So that's what I tell people if they ask me if Pluto is a planet.

所以如果有人问我冥是不是行，我就会么回答。

I say, “Tell me what a planet is first, and then we can discuss Pluto.”

“先告诉我什么是行，然后我们再来讨论冥的问题。”

Pluto orbits the Sun on an elliptical, mildly-tilted path.

冥绕太阳运行的轨道是椭圆的，略微倾斜。

Pluto's orbit crosses Neptune's… more or less.

冥的公转轨道会与海的轨道交… 差不多吧。

Tantalus was the son of the god Zeus and the nymph Pluto.

坦塔罗斯是宙斯和仙女普路托之子。

Water expands as it freezes, and cracks on Pluto's surface may be evidence of this.

水结冰后会膨胀，而冥表面的裂缝可能就是方面的证据。