Our Local Group is near the Virgo Cluster, and both are part of the Virgo Supercluster.

们的本星系团靠近处星系团，两都是室超星系团的一部分。

Its thousands of stars had been part of the M87 galaxy, about 50 million light-years away.

星团中的星星是室A星系的一部分，离地球大约5千万光年远。

The nearest star that might explode in this way is Spica, in Virgo, and it's well over 100 light years away.

们最近的可能以这种方式爆炸的恒星是室的 Spica，它离们有100光年远。

This I.D. was with the woman in Trauma 3.

这是创伤三室的工作证。

And the Milky Way and the rest of our local group of galaxies orbit a barycenter in the Virgo Supercluster.

银河系和们本星系群的其他星系围绕室超星系团的一个质心运行。

Switching back to visible light, as we traverse the Virgo Supercluster, each tiny dot not a star, but a galaxy.

切换回可见光， 当们穿过室超星系团时，每个小点都不是恒星， 而是一个星系。

If M87 is the product of a merger of two galaxies, it might host two central black holes in a binary system, researchers say.

如果室A星系是由两个星系结合产生的，那它很可能同时拥有两个黑洞。

Our Local Group belongs to an even bigger collection of galaxies called the Virgo supercluster, and this supercluster belongs to an even larger supercluster, known as Laniakea.

本星系群属于更大的星系集合叫做室超星系团，而它又属于另一个更大的超星系团叫做兰天超星系团。

Recent observations indicate the Virgo Supercluster is actually only an appendage of the even larger Laniakea Supercluster, which may have 100,000 galaxies in it stretching across 500 million light years.

最近的观测表明，室超星系团实际上只是更大的拉尼亚凯亚超星系团的一个附属物，拉尼亚凯亚超星系团可能有10万个星系，横跨5亿光年。

Until now, astronomers grouped us, the Milky Way and its surrounding galaxies, with Virgo and nearly 100 other clusters in a supercluster that stretches 100,000,000 lightyears across.

到目前为止，天文学家将们、银河系及其周围的星系、室和近 100 个其他星团归为一个横跨 1 亿光年的超星系团。

This dust is illuminated by  the sun and forms a band of light known as the Zodiacal light, which spans from horizon  to horizon featuring a central focus called the gegenschein, appearing directly  opposite the sun's position over Virgo.

这些尘埃被太阳照亮， 形成了一条被称为黄道光的光带，这条光带从地平线的一端延伸到另一端， 其中心焦点称为对日照，正好出现在太阳在室位置的正对面。