Clusters of galaxies also clump together to form superclusters, the largest structures in the Universe.

星系团也聚集在一起形成超星系团——宇宙中最大的结构体。

Within a given supercluster, all galaxy motions will be directed inward, toward the center of mass.

而在超星系团内部，所有星系都是向内部质心运动。

But even the massive Virgo supercluster is nothing but a quiet and tiny lobe of the great Laniakea Supercluster.

但是，即使是巨大的处女座超星系团，也只不过是拉尼亚克亚超星系团中一个安静而微小的裂片而已。

Superclusters are some of the universe's largest structures, and have boundaries that are tough to define—especially from inside one.

超星系团是宇宙中最大的组织结构，并且很难定义各个星系团的边界，尤其是内部的星系。

A supercluster usually has several dozen clusters making it up, and are hundreds of millions of light years across.

一个超星系团通常由几十个星系团组成，其直径达数亿光年。

Others are densely packed with galaxies in regions known as superclusters.

其他星系在被称为超星系团的区域中密密麻麻地挤满了星系。

The acceleration becomes so rapid that all objects that are beyond our or any local supercluster of galaxies are no longer visible.

加速度变得如此之快，以至于超出我们或任何一个星系超星系团的物体都不再可见。

Here's our supercluster (in black) and a neighbouring structure, Perseus-Pisces (in red).

这是我们的超星系团（黑色）和邻近的结构，英仙座-双鱼座（红色）。

This is the first clear definition of a supercluster.

这是超星系团的第一个明确定义。

Researchers, led by an astronomer at the University of Hawaii at Manoa, have named this supercluster Laniakea, which means immense heaven in Hawaiian.

在夏威夷马诺亚大学一位天文学家领导下的研究人员们将此超星系团命名为兰天，夏威夷语意思是广袤无垠的天堂。