And while it was surprising at first, theorists have explained pretty convincingly how gravity made it all happen: the cosmos started out with some areas of slightly higher density than average, and as the universe expanded, gravity sucked more matter int
And while it was surprising at first, theorists have explained pretty convincingly how gravity made it all happen: the cosmos started out with some areas of slightly higher density than average, and as the universe expanded, gravity sucked more matter int
在它最初出现时,给人一惊,理论家们都详尽的有力的解释了重力时怎样时这一切发生的:宇宙的起源于一些微小的高密度物体，随着宇宙的扩展，重力使更多的物体进入这个地区,使得周围的空间相比之下空洞.