The of sitting a telescope in space was obviously not to get closer to the stars and planets the telescope was to study. That would have been about as daft as standing on tip-toe to get a better picture of the craters on the moon. The whole idea of a space telescope is to study space from a point outside the earth' atmosphere that gives that impression, in roughly the same way the ripping surface of a lake can give the impression that the stones beneath are wavy and indistinct. Or the reverse: from the bottom of a swimming pool it's not easy to see what's happening above the surface.
