posted on Nov, 19 2013 @ 01:47 PM
An improved replacement for Hubble doesn't need to be bigger. What it would have to be is two or three slightly smaller hubbles that have onboard
atomic clocks that are precision stationed from each other (possibly using lasers) so that accurate interferometry can be done. Supposedly there is a
series of downward pointing sats that use such methods, and that's what's not currently available for pointing the other way. (At least for anything
in orbit, some ground telescopes use it. But there's atmosphere and weather in the way.)
So it's not so much optics (which can be available, such as Hubble), but better CCDs or other collectors to gather data, and having data collected in
a way that allows more advanced processing.
Tech is there, but not the budget.