开普勒宇宙航天器利用这一事实，在行星绕恒星运行轨道等候直接穿过恒星与航天器之间的圆面，望远镜将其作为光影察觉到。

The Kepler spacecraft makes use of that fact waiting for a planet in its orbit about the star to pass directly between the disc of the star and the spacecraft, and the telescope perceives that as a dimming of light.

《《星际穿越》中的科学》《The Science of Interstellar》

孩子们，我有个问题要问你们，这个房间里谁发现了颗星星[恒星]？

Boys, I've got a question for you, who in this room discovered a star?

《生活大爆炸 第二季》《The Big Bang Theory Season 2》

最终，宇宙将会由于缺少气体而无法形成恒星，同时恒星自身也会燃烧殆尽，宇宙中留下的只会是一个个黑洞。

Eventually, the universe will run out of gas to form stars, and the stars themselves will run out of fuel and burn out, leaving the universe with only black holes in it.

《TED教育》《TED-Ed》

迄今为止，我们了解到的是差不多银河系里的每个恒星，都有至少一个行星。

What we've learned so far is that literally every star in the galaxy has at least one planet.

《《星际穿越》中的科学》《The Science of Interstellar》

绕着恒星运行的每一个行星，都会向太空投射阴影。

Every planet orbiting a luminous object is casting a shadow out into space.

《《星际穿越》中的科学》《The Science of Interstellar》

拉杰，你猜怎么着？拉夫林教授正招募人员加入恒星进化科研小组。

Hey, Raj, guess what. Professor Laughlin is looking for someone to join the stellar evolution research team.

《生活大爆炸 第三季》《The Big Bang Theory Season 3》

对于开普勒来说，与恒星相比，行星太小难以发现，但它能探察它们的阴影。

Compared to stars, planets are too tiny for Kepler to spot, but it can detect their shadows.

《《星际穿越》中的科学》《The Science of Interstellar》

用这一简单方法已发现了数千颗系外行星。在我们银河系绕其他恒星运行的行星。

This simple method has revealed thousands of exoplanets. Planets orbiting other stars in our galaxy.

《《星际穿越》中的科学》《The Science of Interstellar》

距离两百光年的地方，有一颗土星大小的行星绕着，不是一颗，而是两颗恒星运行。

Two hundred light-years away, there is a Saturn-size planet orbiting, not one, but two stars.

《《星际穿越》中的科学》《The Science of Interstellar》

二三十年前，我们不知道任何其他星球就像地球绕太阳运转，一样绕着普通的恒星运转。

20 or 30 years ago, we didn't know of any other planets orbiting normal stars like our own sun.

《《星际穿越》中的科学》《The Science of Interstellar》

黑洞绕着它的轴线旋转，将它周围的空间拖拽到飞快旋转的运动，将恒星和行星拉入轨道。

A black hole that spins on its axis drags the very space around it into a whirling motion that pulls stars and planets into orbit.

《《星际穿越》中的科学》《The Science of Interstellar》

暗物质与光的相互作用很弱，也就是说暗物质本身并不发射或反射光线，这与其他恒星和行星不同。

Dark matter is only very weakly interacting with light, which means it doesn't shine or reflect light in the way that stars and planets do.

《TED教育》《TED-Ed》

开普勒的目标很简单。就是确定我们星系的恒星部分确定在一个地球大小的星球，适合居住的可能性。

Kepler's objective is very simple. It's to determine the fraction of stars in our galaxy that harbor potentially habitable Earth-size planets.

《《星际穿越》中的科学》《The Science of Interstellar》

在外太空，你可以聚起非常多的质量，就像在一个超级巨大的恒星引力就会变得越来越大，越来越大，最终物质对自身施加的压力无法承受。

In outer space, you can get so much mass together, like in a super-massive star that the gravity just becomes stronger and stronger and stronger, and eventually the pressure that matter exerts on itself can't keep up.

《《星际穿越》中的科学》《The Science of Interstellar》

那么，宇宙是由什么构成的呢？宇宙中包含着我们肉眼所能看到的一切，比如恒星、气体和行星。我们称这些为普通物质或重子物质。

So, what is the universe made of? The universe contains all the things that we can see, like stars, gas, and planets. We call these things ordinary or baryonic matter.

《TED教育》《TED-Ed》

所以如果你生活在一个像开普勒-16B这样的世界上，你会看到天上有两颗恒星东升西落，由于它们互相绕行，不断地变换着位置。

So if you were living on a world like Kepler-16b, you would see in the sky two stars rising in the east, setting in the west, continuously changing position as they orbit one another.

《《星际穿越》中的科学》《The Science of Interstellar》

所以这就是我们为什么寻找具备这些条件的星球。要有岩石表面可以积水，并获得来自恒星的适量的能量。那里的水不会因为星球太冷而以冰冻的状态封存，也不要因为星球太热，水分都被蒸发掉了。

So that's why we look for planets that have rocky surfaces where water could pool and that are receiving the right amount of energy from the star, where the water wouldn't be locked up in a frozen state because the planet is so cold, nor would it be evaporated away because the planet is too hot.

《《星际穿越》中的科学》《The Science of Interstellar》