Resolving an elephant at 5 light years?

I thought I'd add that, to get this resolution, you do not literally need a 6 million km diameter telescope mirror. It can be done with a phased locked array of just a few telescopes spread out in space over 9 million km. It's easier to do such a thing with radio waves (google "very large array") because the dimensional tolerances are larger, but has been done a few places for 10's of meters with visible light. Making it bigger it "just" a matter of refining the technology and putting it in space. There's still the issue of intensity, though; it would be nice to collect more than a few elephant photons. Some day ...