This debris was recaptured a few hundred years after each collision. 在每一次碰撞之後幾百年,這些碎屑又被重新俘虜。
The whole thing looks like a ring to us on Earth because we're seeing the collision head-on, rather than from the side. 對於地球上的我們,整個暗物質看起來象一個巨環,因為這次碰撞是我們從前面,而不是從側面觀察到的。