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A Soviet Tupolev Tu-104 jetliner

On this day in space! July 27, 1962: The 1st zero-g cosmonaut training flight took off on a Soviet jetliner

By Hanneke Weitering Published

On July 27, 1962, two Russian cosmonauts boarded a Soviet airliner and experienced weightlessness without going to space. Here's why it mattered.

Space Exploration
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