Comment by alganet
What about multiple satellites working to get one image?
Like the arrays we have on Earth pointing to space, but instead, arrays on space pointing to Earth.
I know there probably isn't that many KH-style satellites to do it, but would it be possible?
The alignment has to be better than half a wavelength. That's doable for RF, but for optical telescopes you're talking nanometers. That's not possible (currently or in the foreseeable future) for a spacecraft constellation.