For thousands of years, humans have gazed upon the Milky Way with awe and wonder.

数千年来，人类都怀着敬畏和好奇心仰望银河。

With Hubble, we've been able to see beyond the Milky Way Galaxy.

有了哈勃望远镜，我们能够看到银河系之外的东西。

They deduced the center of mass between the two heavyweights and found that Andromeda may indeed be twice as massive as the Milky Way.

他们根据二者的重量级推导出质心，后发现仙女座也许真的是银河系的2倍。

This is the Milky Way, this is home.

这是银河系，我们家。

And it's now proving valuable for helping astronomers and other scientists understand more about the evolution of stars, black holes, and the structure of the Milky Way.

今，它在帮助天文学家和其他科学家深入了解恒星、黑洞，以及银河系的演变过程方面有重要值。

It would be the first one ever detected outside of our own Milky Way Galaxy.

这将是第一次在我们的银河系之外探测到（行星）。

Of course, the one we live in is the Milky Way, which would have made that question too easy.

，我们生活的地方是银河系，这个问题太简单了。

And this band is the densest part of our own Milky Way Galaxy.

这条带是银河系中恒星最密的部分。

When Cowherd and Weaver Maid died, they turned into the stars called " Cowherd" (Altair) and " Weaver Maid" (Vega), looking at each other forever each side of the " Silver River" (Milky Way).

牛郎和织女死后，化作“牛郎”（牵牛星）和“织女”（织女星）的星星，隔着天河彼此相望。

The technology works by detecting infrared light in the cosmos which allows observers to see through layers of dust, illustrating what's happening inside the Milky Way.

这项技术的工作原理是通过探测宇宙中的红外光，使观测者能够透过层层星尘洞悉银河系内部的状况。

These might actually be abundant in the Milky Way.

银河系中这样的文明数量可能是众多的。

There are one hundred thousand million starts in our own Milky Way alone, and then there are three thousand million other milky ways or galaxies, in the universe.

仅我们的银河系就有1000亿颗星，况且在宇宙中还有30亿个其他的天河或星系。

The Milky Way galaxy has 250 billion plus or minus a few hundred billion stars.

银河系有2500亿颗恒星，误差可能有几千亿。

In the whole universe, as far as we yet know, there is only one place, an inconspicuous outpost of the Milky Way called Earth, that will sustain you, and even it can be pretty grudging.

据我们所知，在整个宇宙里，只有银河系里一个名叫地球的、不大醒目的边远地方愿意收留你，而且连它也可能不大情愿。

But the path of this sprinter supposedly originates in a spiral arm of the Milky Way known as the norma arm.

但这个恒星的路径据说起源于银河系的一个称为诺玛臂的旋臂。

There are millions of stars in the Milky Way.

银河系里有数百万颗恒星。

But in the great scheme of things, it's a pinprick, one of about 400 billion stars in the Milky Way galaxy, which you can see on a clear night as a pale white mist stretched across the sky.

但是在浩瀚的宇宙中，它不过一个针孔大小而已，是银河系中四千亿星星的一员，正你可以在晴朗的晚上看到满天的星星好似淡淡的白雾。

Much of that distant memory has faded, but I can still see the luminous Milky Way, the faint outline of dunes, the distant rock formations, and the mussel fossils I picked up and then lost.

那段遥远的记忆大多已模糊，但我仍能看见璀璨的银河、沙丘微弱的轮廓、远处的岩石构造，以及我曾拾起又遗失的贻贝化石。

Dark matter is spread throughout space, engulfing the Milky Way and all other galaxies.

暗物质遍布太空，包围着银河系和所有其他星系。

In a galaxy like our own Milky Way, we estimate that about once every 50 years, a massive star dies.

在一个像我们的银河系一样的星系里，我们估计大约每 50 年就有一颗大恒星死亡。