Not only is she utterly alone now, she's also in danger; debris from that blast will be hitting the moon next, and depending on the size of the debris and the scale of the impacts, it'll wreak havoc on the moon too.



It's orbit is also going to be all out of whack too, not that'll make much of a difference considering it's already a barren world (unless Luna has some secret hidden shelter somewhere on the moon...I always wondered about that).