Quasars also seem to be surrounded by halos of dark matter, a cryptic and unseen component of all galaxies.

类星体看上去也被一些暗物质组成的“环”围绕着，这是所有星系都有的一个神秘的，看不见的组成部分。

youdao

Halos of dark matter can sit undisturbed at the centers of galaxies almost indefinitely, much longer than the lifetimes of individual stars.

暗物质能静静的在星系中心永远的存在下去，它比恒星的寿命要长很多。

youdao

In the violence of the encounter, streamers of galactic material are pulled out away from the parent galaxies and the halos of dark matter that surround them.

在这一剧烈的相撞过程中，星系物质被抛离其母星系以及围绕它们的暗物质。

youdao

Indeed, one principal purpose of the Bolshoi simulation is to compute and model the evolution of dark matter halos thereby rendering the invisible visible for astronomers to study, and to predict structures that astronomers could then seek to observe.

FORBES: Connect