Laniakea encompasses 100,000 galaxies stretched out over 500 million light-years.

兰天超星系团内部包含10万个星系，延伸5亿光距离。

Within the universe there are a hundred billion galaxies.

宇宙里有一千亿个星系。

Scientists have also discovered other galaxies in the universe.

科学家们也已经在宇宙中发现了许多其他星系。

We've been able to see very distant galaxies with Hubble.

我们已经能用哈勃望远镜观测到非常遥远星系。

Can we go back to our own beautiful galaxy?

我们能回到自己美丽星系吗？

No, there are more galaxies than grains of sand on all the world's beaches.

不是，是宇宙中星系总数比世界上所有海滩中沙加起来还多。

But we have discovered new galaxies right here where we least expected, within our ocean.

但我们发现了新星系，就在这个我们最意想不到地方海洋中。

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

这些都是星系名字，大量恒星。

Spiral galaxies are a common galaxy type.

螺旋星系是一种常见星系类型。

The galaxy's most ambitious, least successful con artists.

星系里最雄心勃勃却最失败诈骗集团。

It's the galaxy's faith in the Vindicators that keeps the galaxy secure.

是银河系对维护者们信心令银河系安全。

We can study it by looking at galaxies.

我们可以通过观察星系来研究它。

Most galaxies are built around supermassive black holes.

大多数星系都是围绕超大质量黑洞建造。

It established the galaxy as a neutrino source.

它确立了银河系为中微子源。

Y-you're talking about taking over planets and galaxies.

你 你是要占领无数星球甚至星系人。

It will take millennia to reach the target galaxy.

因为信息要花上千才能到达目标星系。

The closest of the 19 galaxies is called NGC5068.

19个星系中距离最近一个被称为NGC5068。

Khan says there are enough galaxies for each classroom on earth to adopt one

可汗说，地球上每个教室都有足够星系来容纳一个星系。

Up to two trillion galaxies made up of something like 20,000 billion billion stars surround our home galaxy.

环绕着银河系 2 万亿个星系就是由 200 万亿亿颗恒星组成。

There are billions of galaxies, all with billions of planets.

即，有数十亿个星系，所有星系都有数十亿个行星。