So, they assigned each of us something celestial to do.

所以给自己分派一些天体的角色。

In their rotational and orbital movements, stars and their satellites go from right to left.

天体的行星和它的卫星公转和自转的运动，都是从右向左转。

For the first time ever, we will measurably change the orbit of a celestial body in the universe.

这是有史以来第一次将可测量地改变宇宙中天体的轨道。

It was the first ocean discovered on another planet.

这是在除地球外的天体上发现的第一个海洋。

This is still so fresh that we don't actually have this object's orbit totally refined.

这对于仍然很新，实际上还没有完全确定这个天体的轨道。

In fact, it was the first ocean ever discovered on another celestial body.

事实上，这是在除地球外的天体上发现的第一个海洋。

Astronomers detect and study dark matter by observing its effects on the visible celestial bodies around it.

天文学家过观察暗物质对周围可见天体的影响来探测和研究暗物质。

That there was a scientific way of thinking about the Heavens beyond simply saying " God did it."

天体的运行可以用科学的方式思考，而不仅仅是简单地说“这是上帝的作为”。

Now, by tracking the orbits, it's possible to work out the mass of the thing at the centre.

过跟踪这些星体的轨道，便能算出银河系中心天体的质量。

Or perchance a celestial contrivance navigating the skies?

或者也许是天空中导航的天体装置？

This is the first-time scientists have witnessed a planet potentially being formed outside of our celestial neighborhood.

这是科学家首次目睹在的天体附近之外的一颗潜在行星的形成过程。

So let's talk about our Mexican light show.

那来说说墨西哥的天体灯光秀。

It's the first time humans have deliberately changed the path of a celestial object.

这是人类第一次故意改变天体的路径。

So these had to be very bright objects.

因此必须是那些极为明亮的天体。

But if we use infrared measurements from infrared telescopes, this allows to constrain much more the size of the object.

但如果使用红外望远镜进行红外测量，就能更精确地限定该天体的大小。

Let's try another set of puzzle pieces from astronomical, non-black hole objects.

让尝试另一组来自天文非黑洞天体的拼图。

The debate only intensified when objects approaching Pluto's size were discovered.

当接近冥王星大小的天体被发现时，争论更激烈了。

And you’d be suspended, weightless, only encountering the tiny pulls from other celestial bodies.

你会被悬空， 失重，只会遇到来自其他天体的微小拉力。

The objective of astronomy is the exploration of all phenomena outside the earth.

天文学探索地球以外的一切天体现象。

It scales with mass, so the more massive the planet or star, the stronger its gravity.

它依附于质量而存在，天体的质量越大，它的引力也就越大。