Mirosław Hermaszewski, Polish general, pilot and cosmonaut (died 2022)

Mirosław Hermaszewski was a Polish cosmonaut, fighter plane pilot, and Polish Air Force officer. He became the first and, at the time of his death in December 2022, only Polish national to ever go to space when he flew aboard the Soviet Soyuz 30 spacecraft in 1978. He was the 89th human to reach outer space.

September 15 is the 258th day of the year in the Gregorian calendar; 107 days remain until the end of the year.