The first Polish cosmonaut, he participated in the 1978 Soyuz 30 objective. He gained a Hero from the Soviet Union honor for his bravery on the area trip. Ukrainian nationalists murdered nineteen people of his family members in the Volhynian massacres during Globe Battle II. He became a member of the Soviet Interkosmos space system in 1978. His relationship to Emilia Hermaszewska created a boy and a girl. He was created in the same yr as fellow cosmonaut Leonid Kizim.