Water is primarily in the outer solar system.

水主要存在于外太阳系。

The outer solar system is full of ocean worlds.

外太阳系充满了海洋世界。

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

它是穿越外太阳系的“荷马”奥德赛。

Few pass near our planet because most orbit in the outer solar system.

它们极少靠近地球绝大部分都在太阳系外部。

Most comets studied thus far have come from the Kuiper Belt, located in the outer solar system.

我们目前研究的彗星多处于古比皮带位于太阳系外部。

And this has acted to throw material from the asteroid belt out of the asteroid belt into the outer solar system.

这使得小行星带的物质被抛出小行星带，进入外太阳系。

These objects in the outer solar system are all reacting to something.

太阳系外的这些物体都在对某种东西做出反应。

They're really really mysterious and we think  that they come from the outer solar system.

它们真的非常神秘，我们认为它们来自外太阳系。

It was to go out and look at all the planets in the outer solar system.

就是出去看看太阳系外的所有行星。

" At the time of its design, we had no idea that ocean worlds existed in the outer solar system."

“在设计时，我们并不知道外太阳系中存在海洋世界。”

It also deployed a probe named Huygens to land on Titan's surface, the first time humanity had ever landed on an outer solar system moon.

它还发射了一个名为惠更斯(Huygens)的探测器到土卫六表面，这是人类首次登录外太阳系卫星。

But there are two more big ones out there, orbiting the Sun out in the cold depths of the outer solar system: Uranus and Neptune.

但在太阳系外寒冷的深处，还有两颗更大的绕太阳公转的行星：天王星和海王星。

On a grand scale, it's why the ocean worlds in the outer solar system have become such important targets for study.

从广义上讲，这就是太阳系外的海洋世界成为如此重要的研究目标的原因。

Scientific models of the planet based on physics and chemistry of the outer solar system indicate its interior is probably made up of three general layers.

基于外太阳系物理和化学的行星科学模型表明，其内部可能有三层。

Konstantin and I spent a year trying to come up with any explanation other than a distant, giant planet in the outer solar system.

康斯坦丁和我花了一年的时间试图想出除了外太阳系中一颗遥远的巨行星之外的任何解释。

This was the first time since 1845 that we saw the gravitational effects of something in the outer solar system and didn't know what it was.

这是自 1845 年以来我们第一次看到太阳系外某物的引力效应，但当时并不知道它是什么。

Then there was another seriously terrifying event: the Late Heavy Bombardment, a period of intense collisions with comets from the outer solar system, probably triggered by the movement of outer planets.

后期重轰炸，这是一段来自外太阳系的彗星频繁撞击的时期，可能是由外行星的运动引发的。

One of the interests in bodies like Ceres and other icy bodies in the outer solar system is that when objects like that impacted the terrestrial planets, they brought a lot of water.

她说，" 人们对谷神星和其它冰壳星球之类的外太阳系星球感兴趣的一点在于，当这类星球撞击类地行星时，它们会带来大量的水。

Eventually, when the gas cleared out from the disk, it released its hold on the two giant planets, and they were free to wander back toward the outer solar system.

最终， 当气体从圆盘中清除时，它释放了对两颗巨大行星的控制，它们可以自由地向外太阳系漫游。

Indeed, Titan is one of several ocean worlds, moons in the cold outer solar system beyond the orbits of Mars and the asteroid belt with immense liquid water oceans beneath their surfaces.

事实上，土卫六是几个海洋世界之一，它是火星轨道之外寒冷的外太阳系中的卫星， 也是小行星带， 在它们的表面下有巨大的液态水海洋。