In article .com,
wrote:
How about this: putting 3 or 4 Hubble-sized (for redundancy & time-use
issues) craft in Jovian Trojan orbits would give you a 10 1/2
AU-equivalent instrument! That would almost see planets in Andromeda!

Only if you could hold the distance between them stable to within a
fraction of a wavelength of light, *and* beam the light gathered by one
to another across that distance without losing much of it. That...
presents problems, to put it mildly.

People are still struggling to make imaging interferometry work well at
distances of a hundred *meters* with both telescopes resting on solid rock.
--
"Think outside the box -- the box isn't our friend." | Henry Spencer
-- George Herbert |