(单词翻译:单击)
Do you like looking up at the night sky?
你喜欢仰望夜空吗？
On clear evenings, there's nothing Squeaks and I like more than staring at the stars.
在晴朗的夜晚，我和吱吱最喜欢看星星了。
If you've never done it, you need to try it the next time you stay up late!
如果你从没这么做过，就应该在下一次熬夜时试试看。
Because sometimes, when it's really, really dark,
有时候，天空非常非常得暗，
and you're far away from the lights of the city, you can see something special.
而你远离城市灯火时，可以看见一些特别的东西。
It looks like a thin, cloudy stripe stretching across the sky.
它看起来像一条窄窄的、云一样的条纹划过整个天空。
A long time ago, scientists thought it looked like someone had spilled a bunch of milk up there!
很久以前，科学家们认为它像是有人洒落的一些牛奶。
So they called it The Milky Way.
所以他们管它叫“牛奶之路”。
But what is it exactly? And why is the Milky Way milky?
但它到底是什么？又为什么银河会像牛奶一样呢？
Well, when you look up at the sky at night and see the Milky Way,
你仰望夜空看到了银河，
you're actually seeing part of the galaxy that we live in.
但实际上，你看到的只是我们居住的银河系的一部分。
A galaxy is just a really, really, really big group of stars, and their planets, all hanging out together in space.
银河系有许许多多恒星和它们的行星，所有这些都在宇宙中。
Now, the sun is a star, too, it's the star that's closest to Earth.
现在，太阳也是一颗恒星,它是离地球最近的一颗恒星.
And it's just one of the many, many stars in our galaxy.
而它只是银河系中万千恒星中的一颗。
How many stars are there? Billions!
那到底有多少恒星呢？上亿个
It's an eee-normous number!
是个超大的数字！
Even if you started counting right now, and kept counting until you reached a billion, it would take you over 30 years.
即使你从现在开始数，一直数到十亿，那也需要30年的时间。
And there are MANY billions of stars in the Milky Way!
而银河系中有千百亿颗星星！
So, the Milky Way galaxy is huge! And the sun and the Earth are a part of it.
所以银河很大！而太阳和地球是它的一部分
But, here's a question for you: How can we see the Milky Way at night, if the sun and Earth are actually in it?
但是这儿有一个问题：如果太阳和地球都被包括在内，我们在晚上是怎么看见银河的？
Well, it's kind of like, if you walk out your front door, and you look one direction,
好吧，这有点儿像，如果你走出前门并沿着一个方向看，
you can see part of of your neighborhood.
你可以看到你街区的一部分。
But if you look the other direction, you can see another part.
而如果你看向另一个方向，你可以看到另一部分。
But you can't see your whole neighborhood from your front door all at once, because your neighborhood is just too big.
但是站在前门，你一眼看不到街区的全部，因为你的街区很大。
But, you can see parts of it, a little bit at a time.
但是你可以看到它的一部分，一次看到一小部分
And the same is true for our galaxy.
我们的银河也同理。
All of the stars in the Milky Way make a huge, flat spiral, shaped kind of like a spinning plate,
银河里的所有星星组成了一个巨大而扁平的螺旋，形状有点儿像一个正在旋转的盘子。
and the Sun and the Earth sit near the edge of that spiral.
而太阳和地球的位置接近那个螺旋的边缘地带。
So, sometimes, when we look up at the night sky,
所以有时候我们仰望夜空时，
we can see some of the far-away stars in the Milky Way that are between us and the edge of that spiral.
可以看到银河中一些很远的星星处在我们和那个螺旋的边缘之间。
And other times, we can see some of the stars between us and the middle of the spiral.
而其他时候，我们可以看到一些位于我们和螺旋中心之间的星星。
If you want to see the Milky Way for yourself some time,
如果你什么时候想看银河，
go to a place where there aren't many houses, or cars, or streetlights
就去一个没有许多房屋、汽车或街灯的地方，
all of those things have really bright lights, and lights can make it hard to see the stars at night.
这些东西的亮光会让晚上看星星变得困难。
When Squeaks and I want to get out of the observatory and look at the stars, we like to go camping.
当我和吱吱想要离开天文台看星星时，我们喜欢去野营。
And you know what camping means? S'mores!
你知道什么是野营吗？果塔饼干（是露营时常吃的一种小吃, 下面放饼干, 放上巧克力, 再放上棉花糖）
But of course, you'll need to go on a clear night.
但当然 你要选个晴朗的夜晚。
Because you can't see the stars if a bunch of clouds are in the way!
因为如果云彩太多，你就看不到星星了。
Then just look up until you see the light, milky strand in the middle of the sky!
抬头，直到你看到光亮而柔和的长河横贯天空。
It's easiest to see between June and August,
在6月到8月间最容易看到银河，
because that's when Earth is facing in toward the middle of the galaxy, which is the brightest part.
因为那是地球直面最亮的银河中心的时候。
But you can see parts of our home galaxy pretty much any time of the year.
但是你全年任何时候都能看到银河系的一部分。
Because we live in the Milky Way. So it's always there!
因为我们住在银河系里，而它总在那里。
Thanks for joining us on SciShow Kids, in the Milky Way. See you next time.
感谢观看儿童科学秀之银河系，下次再见！
