Longest single spaceflight in human history - 437 Days and 18 hours.
Valeri Vladimirovich Polyakov (Russian: Валерий Владимирович Поляков, born Valeri Ivanovich Korshunov on April 27, 1942) is a Russian former cosmonaut. He is the holder of the record for the longest single spaceflight in human history, staying aboard the Mir space station for more than 14 months (437 days 18 hours) during one trip.[1] His combined space experience is more than 22 months.[2]
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