There are nine planets in the solar system.

在系中有九大行星。

What planet in our solar system has the longest days?

系中哪颗行星白昼？

Look at the solar system, and look at the Earth.

另一些时候则会终走到尽头。

Ganymede is the largest moon in our solar system.

伽尼墨德(木卫三)是系里大卫星。

Our solar system is drowning in water.

我们系正淹没在水中。

That species may leave the solar system.

那个物种可能会离开系。

None of the asteroids in our solar system look like that.

系中小行星也没有这种形状。

Our solar system forms in the meantime. - Yeah.

与此同时，我们系形成了。 - 是。

Consider the planet Venus in our solar system.

拿我们系内金星作为例子。

Well, our solar system definitely isn't alone.

其实，我们系并不孤单。

Neptune is one of the farthest planets of the solar system.

海王星是系中远行星之一。

It's " Homeric" odyssey across the outer solar system.

它是穿越外系“荷马”奥德赛。

What is the second-smallest planet in our solar system?

系中，第二小行星是什么？

They can learn all about the solar system, too.

他们也可以学到很多系知识。

Jupiter is the biggest planet in the solar system.

木星是系中大行星。

Jupiter really is the lord of the solar system.

木星真是系里霸主。

Our solar system is turning into a giant spa.

我们系正在变成 一个巨大温泉浴场。

Other planned missions cover over half the solar system.

其它计划囊括了多半个系。

Everybody ready to say goodbye to our solar system.

大家准备跟我们系说再见吧。

In your own small solar system?

在你们自己小系吗？