He was selected as a cosmonaut on 1 December 1978 and flew as Flight Engineer on Soyuz T-10 and Soyuz T-15, spending a total of 361 days, 22 hours, 49 minutes in space.
Ia terpilih menjadi antariksawan pada 1 Desember 1978 dan terbang sebagai insinyur penerbangan pada Soyuz T-10 dan Soyuz T-15, menajalni 361 hari, 22 jam, 49 menit di ruang angkasa.