The Laser Interferometer Gravitational-Wave Observatory.

全称叫做“激光干涉引力波观测台”。

A gravitational wave is a ripple in the shape of space and time.

引力波是以时间和空间的形式产生的波动。

In a way, detectors like LIGO are big gravitational wave radios.

某种意义上说，LIGO这类探测器，如同一台大型引力波收音机。

Once the detectors feel a gravitational wave, scientists can extract information about the wave's source.

一旦探测器感知到了引力波，科学家就能够提取关于引力波来源的信息。

These are gravitationl waves. What would a gravitational wave feel like?

这些“涟漪”就是引力波。引力波会让人产生什么感觉呢？

So let me take a moment to tell you what I mean by a gravitational wave.

现在让我来简单介绍一下什么是引力波。

Taken the Earth as material of antenna for receiving gravitational wave, the Earth behaves as a low-frequency gravitational detector.

将地球作接收引力波的天线物质，地球就成为了工作在低频段的引力波探测器。

The observatory is the largest, most sensitive gravitational wave detector ever built.

它是目前全世界最大的 、 灵敏度最高的引力波探测所.

And they're not the only ones. There are gravitational wave detectors spread across the world.

LIGO并不是唯一的探测器。全球各地都有引力波探测器。

Astronomer Scott Ransom even exclaimed that the era of gravitational wave astronomy is upon us!

宇航员斯科特·雷森甚至惊讶道，引力波天文学时代寄托在我们身上！