What impact did stalin and the soviet government have on science and t/he arts?

Soviet controled Stalin had a great impact on space technology and arts. It is Soviet successful launch of the sputnik that spurred a space war, that ended with American manned landing on the moon.

The soviet union under Stalin in addition led to a number of break through discoveries in nuclear science, weapons and equipments.

In arts, contemporary movie industry was heavily influence by the Soviet-USA conflict.