>>1949587My miss, light green did exist, as you can see on the bottom right on that map, it was under active construction right about that time. But even projected stations stopped a good way inside the city, it'll be a long while till they extended it anywhere near the ring road, nevermind past it.
Despite being called Moscow Physics-Technology university, it's not actually in Moscow, it's just a bit north of it, and back in the day the idea of metro expanding outside the city was preposterous. How far we've come.