Soyuz 28

Soyuz 28 carried Soviet commander Aleksei Gubarev and Czechoslovak research cosmonaut Vladimír Remek to Salyut 6 in March 1978. Spacefacts lists launch from Baikonur Site 1 on March 2, docking with Salyut 6 on March 3, undocking on March 10, and landing the same day after 7 days, 22 hours, and 16 minutes in flight. The mission was the first crewed Interkosmos flight and the first human spaceflight by someone who was neither Soviet nor American. After docking, Gubarev and Remek joined the Salyut 6 resident crew, Yuri Romanenko and Georgi Grechko. The visiting crew delivered letters and supplies and carried out Czechoslovak-linked experiments in life sciences, materials processing, crew adaptation, and atmospheric observations. Remek's flight made Czechoslovakia the third country represented in human spaceflight and later became a key marker in ESA histories of European human spaceflight.