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

小行星又被成为微型行星，不要把它和像冥王星矮行星混淆了。

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

水星、金星、球、火星、木星、土星、天王星、海王星和冥王星。

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.

相当于从球到冥王星往返337次距离。

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

相当于从球到冥王星往返337次距离。

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

看到冥王星和火星吵了起来。

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

我们现知道月球、火星、冥王星上都有水。

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

今天，我们讲述珀西瓦尔·洛厄尔故事，他工作导致了冥王星发现。

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

寻找行星X并最终发现冥王星之前，他就去世了。

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

我说了 我要填写冥王星是行星声明。

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

爸 冥王星不是一颗行星 大公司让它不断缩小。

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

看看个手镯，它很酷，它甚至还有一个冥王星！

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

但根据冥王星计划设计者发现，对于导弹来说是很棘手。

Yeah, hold on. Phone for you, Pluto.

等会，找你电话，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王星是不是行星，我就会么回答。

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

“先告诉我什么是行星，然后我们再来讨论冥王星问题。”

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

冥王星绕太阳运行轨道是椭圆型，略微倾斜。

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

冥王星公转轨道会与海王星轨道相交… 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，而冥王星表面裂缝可能就是方面证据。