So how do we thicken the exosphere and create a life-bearing ecosystem?

那么我们如何加厚外逸层并创造一个承载生命的生态系统呢？

When these comets come thundering into the Moon's exosphere, the impact will populate the exosphere with a surplus of water vapor.

当这些彗星轰鸣般地进入月球的外逸层时，撞击将使外逸层充满过剩的水蒸气。

To spread gas around the exosphere, we'll need a series of icy comets that we will crash into the surface of the Moon.

为了在外逸层周围扩散气体，我们需要一系列冰彗星，它们将撞击月球表面。