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Published online by Cambridge University Press: 14 August 2015
The Soviet Union developed science (including astronomy) to a high level, although largely isolated from the rest of the world. In 1990 about 2% of GDP, i.e. tenths of a billion dollars per year, were invested in science. The USSR occupied fourth place in the world in respect of its investment in science. More than a million persons worked in scientific research, with about 3,000 of those in astronomy.