A telescope in China has detected a huge atomic gas structure in the vicinity of a galaxy group known as Stephan's Quintet.

我国的一台望远镜在一个被称为“斯蒂芬五重星系”附近发现了一个巨大的原子气体结构。

This method involves observing how the gravity of large collections of galaxies can distort the light of more distant galaxies that sit behind the galaxy group, NASA explains.

美国航空航天局解释说，这种方法包括观察大型星系群的引力如何扭曲位于该星系群后面的更遥远星系的光线。

The irregular collection of Galaxies, known as the Virgo Super-cluster, is nearly 200 million light years in diameter and is comprised of hundreds of small clusters and galaxies groups including our own.

不规则的星系集合，被称为处女座超级星系团，直径近两亿光年，由数百个小星系团和星系群组成，包括我们自己的星系团。