In the 1990s and 2000s the funding dried up and they mostly fell apart. They were sold to China for parts.
> completely ignore who funded this work, when, and why.
Well yes, because it’s tangential.
Also who funded it? Are you implying that the USSR’s colonial possessions didn’t contribute anything economically?
And in the USSR, national republics were financed at the expense of the core of the country, where Russians lived. You can look up (which you certainly won't do) data on the standard of living and level of freedom in different republics of the USSR. For example, in Georgia, small business was allowed, in the RSFSR they put people in jail for it, but in Georgia, for example, you could grow tangerines, transport them on subsidized planes to the north, to all sorts of Norilsk, sell them, and receive in two weeks approximately the annual salary of a Soviet engineer who developed those very missiles, planes, etc. Of course, when the lights went out in the Union in 1991, all this Caucasian prosperity reached a civil war within a year.
By the way, I think that something similar exists in the modern USA, but the locals are blind, just like the Soviet citizens of Russian ethnicity were blind (you may not be aware, but not every successful person of smoked appearance from Russia is Russian), and do not see what is happening. When your Red-Haired Atlas completes his "perestroika and acceleration" in the USA, there will also be changes there, and perhaps people will also begin to see what they did not notice before. Well, that is, if there will be someone to do so.