We call this the radius of the observable Universe.

我们称之为可观测宇宙的半径。

So within the observable universe, what do we know 'exists'?

所以在可观测宇宙中，我们怎么知道‘存在’呢？

That's the limit of our observable universe.

这就是可观测宇宙的边界。

That's the case for everything In the observable universe.

它在可观测的宇宙中无处不在。

At the edge of the observable universe, is just more universe.

在可观测的宇宙的边缘，存在的只是更多的宇宙。

And in just 4,600 years, your gold coins would outweigh the observable universe.

只需要 4600 年，你的金币就会超过可观宇宙。

Some say it's at least 250 times bigger than our observable universe.

有人说至少比我们观测到的宇宙范围大250倍。

This is the observable universe and it contains everything that we know of.

这是可观测到的宇宙，它包含了我们所知道的一切。

It seems like the universe is just infinite, which it is, but the observable universe is finite.

宇宙看起来是无边无际的，事实也确实如此，但是可观测的宇宙是有限的。

The distance from Earth to any side of the observable universe is 46.5 billion light-years.

从地球到可观测的宇宙任何一侧的距离是 465 亿光年。

If we stay on this line, we will map every large galaxy in the observable universe by 2060.

如果我们继续沿着这条线走，到2060年我们将绘制出可观测宇宙中每一个大星系的样貌。

What's perhaps even more interesting however is what actually lies beyond the observable universe.

然而，也许更有趣的是，在可观测的宇宙之外，究竟还有什么。

Keep in mind that the observable universe is all that we can currently see.

请记住，可观测的宇宙是我们目前所能看到的一切。

This would be similar to you thinking that the entire observable universe.

这就类似于你认为的整个可观测宇宙。

If you were the size of our galaxy, the observable Universe would only be a day's drive across.

如果你如银河系一般大小，那可观测的宇宙只需要一天的车程就可以浏览结束。

That is just one galaxy, there is a billion other galaxies in our observable universe, which is actually only expanding and getting bigger.

那只是一个星系，在我们可观测的宇宙中还有十亿个其他星系，它只会膨胀并变得越来越大。

Scientists estimate that the observable universe contains about 200 billion galaxies.

科学家估计，可观测宇宙包含大约 2000 亿个星系。

This is equal to 10.7% of the diameter of the entire observable universe.

这相当于整个可观测宇宙直径的10.7%。

One of these regions would become what we now see as the observable universe.

其中一个区域将成为我们现在所看到的可观测宇宙。

And in the entire observable Universe, there’s estimate to be around 200 billion galaxies.

在整个可观测宇宙中， 估计有大约 2000 亿个星系。