mkey, but one will have to build 3.5+ mile wide optical interferometer... largest being built right now is 400m wide: http://en.wikipedia.org/wiki/Magdalena_Ri

mkey, but one will have to build 3.5+ mile wide optical interferometer... largest being built right now is 400m wide: http://en.wikipedia.org/wiki/Magdalena_Ridge_Observatory_Interferometer http://en.wikipedia.org/wiki/Magdalena_Ridge_Observatory_Int...