Yes, much finer optical resolution is possible if you use multiple instruments separated by a controlled interval. In radioastronomy, there are arrays of dishe

Yes, much finer optical resolution is possible if you use multiple instruments separated by a controlled interval. In radioastronomy, there are arrays of dishes that use this technique. There are good pictures in the Wikipedia article. [0] One military implementation was a connected three-satellite constellation, built by the US Navy for scanning the surface of the world's oceans. [1] But those tools work in (relatively) long wavelengths. I have never heard of free-flight multi-aperature interferometry that works in optical or near-optical wavelengths. . [0] "Very-long-baseline interferometry" https://en.wikipedia.org/wiki/Very-long-baseline_interferometry https://en.wikipedia.org/wiki/Very-long-baseline_interferome... [0] "How VLBI Works" https://en.wikipedia.org/wiki/Very-long-baseline_interferometry#How_VLBI_Works https://en.wikipedia.org/wiki/Very-long-baseline_interferome... [1] "White Cloud | PARCAE | NOSS" https://en.wikipedia.org/wiki/Naval_Ocean_Surveillance_System https://en.wikipedia.org/wiki/Naval_Ocean_Surveillance_Syste...