Alex Terrell wrote:
Thinking about that, might it be viable to put a telescope on an
Antarctic mountain? It would be much cheaper than Hubble, would be able
to stare for a long time, would have excellent atmospheric conditions,
and most of the time would be remotely operated. True it wouldn't see
UV.

There already are remotely operated scopes of various kinds
around the South Pole (and not just optical -- very short wavelength radio
telescopes as well, taking advantage of the very dry atmosphere.)

Paul