Behavior is any observable action one does usually.

行为一个人通常所做的任何可观察到的行动。

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？

We call this the radius of the observable Universe.

我们称之为可观测宇宙的半径。

If space were simply expanding, the size of the observable Universe would expand as well.

如只在膨胀，那么可观测宇宙的大小也会随之膨胀。

The Observable Universe is 93 billion lightyears in diameter.

可观测宇宙的直径为930亿光年。

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

宇宙看起来际的，事实也确实如此，但可观测的宇宙有限的。

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。

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

它在可观测的宇宙中处不在。

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

在可观测的宇宙的缘，存在的只更多的宇宙。

That's the limit of our observable universe.

这就可观测宇宙的界。

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。

Rather they are observable because of the neutrinos originating in the galaxy.

相反，它们可以观测到的，因为中微子起源于银河系。

It's a boundary to the observable universe.

这可观测宇宙的界。

Move to my left, and my observable universe moves with me.

向左移动，我的可观测宇宙也随之移动。

This higher-dimensional object has an observable effect in my flat world.

这个高维物体在我的平面世界中具有可观察到的效。

And by day 42, the experiment would fill up the entire observable universe.

到第 42 天，实验将充满整个可观测宇宙。

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

然而，也许更有趣的，在可观测的宇宙之外，究竟还有什么。

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。

NASA officials said the capsule arrived as planned with no observable damage.

美国航航天局官员表示，太舱按计划到达，没有明显的损坏。

But without any observable gas, they cannot be identified.

但如没有任何可观测到的气体，它们就法被识别。