The stars are known as Cepheid variables.

些恒星就我们熟知的造父变星。

These are all the names of galaxies, massive concentration of stars.

些都星系的名字，大量的恒星。

He said gamma ray bursts that last hundreds of seconds, as this one did, are thought to be caused when massive stars explode.

他说，持续数百秒的线暴，就像一次一样，被认为大质量恒星爆炸时产生的。

And the vehicle that's headed to our nearest star is named the Parker Solar Probe.

次发到距我们最恒星的运载火箭被命名为帕克太阳探测器。

In 1997, they saw evidence of planets near other stars like the sun.

1997年，他们找到证据证明与太阳类似恒星附有行星的存在。

I have loved this place since the day I arrived as a graduate student in 1992. And now you've given me the great honor of leading this university into the future, setting a compass by its constellation of brilliant, if sometimes unruly, stars.

从1992年我读研究生的那一天起，我就喜欢上了个地方。现在，你们给了我极大的殊荣，带领所大学走向未来，用它明亮但有时难以控制的恒星星座来指引方向。

Well, this is a simulation of what that might look like.

好吧，其实拟恒星形成的过程。

It's at this very moment that all the heavier elements in the universe are created, as the star dies, in a super nova explosion.

就个时刻，宇宙中所有的重元素诞生了，即恒星灭亡时的超新星爆炸。

But stars like our sun swell into bloated red giants when the nuclear fuel in their cores is depleted.

但，像太阳样的恒星，核心的核燃料耗尽时，就会发生膨胀，成为胀大的红巨星。

Astronomers can estimate the size and brightness of a star by its color.

天文学家能从恒星的颜色估计它的大小和亮度。

They've detected thousands of exoplanets orbiting stars outside of our own sun, but this one would be in a galaxy far, far away known as the World Pool Galaxy.

他们已经发现了数千颗围绕太阳外恒星运行的系外行星，但颗行星位于一个遥远的星系中，被称为“世界池星系”。

So a constellation is a group of stars that form a pattern.

所以星座指一群形成图案的恒星。

We know more about stars than about the things inside our heads but what we do know about the brain is that it gets less sharp and productive with age.

我们对恒星的了解要多于对大脑内部事物的了解，但我们对大脑的了解，随着年龄的增长，大脑的思维能力和生产力会下降。

Well, astronomy, the study of stars, has lots of mind-boggling theories.

嗯，天文学，个专门研究恒星的学科真的有很多让人不可思议的理论。

As they form, they spiral inwards towards their star.

当它们形成的时候，它们向呈内螺旋态朝向它们的恒星。

And a lower-mass planet will make the star wobble much less.

而一颗质量较低的行星会使恒星的摆动更小。

But other suns, start as the astronomers call them, are bound to have planets like our own, and as is the number of stars in the universe is so vast, this possibility becomes virtual certainty.

但，其他的太阳，即天文学家所说的恒星，肯定会有像我们地球一样的行星。因为宇宙中恒星的数目极其庞大，所以存在着产生生命星球的种可能性肯定无疑的。

They are believed to be formed by collapsed stars.

科学家认为，黑洞恒星碰撞后形成的产物。

They add that the North Star is not the brightest star in the sky.

他们补充说，北极星并不天空中最亮的恒星。

We're looking at some of the sort of faintest stars, earliest stars and earliest Galaxies in unprecedented detail and will also help us probe these planets outside of our solar system known as exoplanets.

我们正在观察一些极微弱的星星、最早的恒星和最早的星系从未被呈现的细节，也将帮助我们探测些太阳系外的行星，也被称为系外行星。