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https://phys.org/news/2022-01-highest-resolution-view-heart-blazar.html
Using 12 radio scopes around the solar system, they achieved an angular res of 12 MICROARCSECONDS of resolution, looking at a blazar 5 BILLION Ly away!
It would take a single radio telescope to be about 200 million kilometers wide!
I pumped in numbers, and it seems that res is some 4000 X Hubble!
Hubble manages to crank out 25 million points from a circle of lights but this array cranks out 110 BILLION such points of light in a circle, of course Ghz bands but this is amazing!