I think it is sponsorship, or the government
2nd option: Changing Stalin's policies.
The term "de-Stalinization" refers to the political reforms enacted by Nikita Khrushchev.
The reforms eradicated Stalin's influence on the Soviet Union. Khrushchev condemned his predecssor's (Stalin's) actions, and his image as this infalliable leader. Khrushchev promised to revert the Soviet Union back to its self-proclaimed socialist society.
Copernicus<span> contributed the heliocentric model of the universe, </span>Brahe<span> contributed astronomical data, </span>Kepler<span> contributed elliptical orbits of planets, </span>Galileo<span> contributed his telescopic discoveries, and </span>Newton<span> contributed his laws of gravitation.
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https://quizlet.com/8423267/chapter-14-17-flash-cards/
They most likely went West.