Cosmonauts from the socialist countries
  • Aleksandr Panayotov Aleksandrov (Bulgaria)
  • Mirosław Hermaszewski (Poland)
  • Jugderdemidin Gurragchaa (Sansar) (Mongolia)
  • Sigmund Werner Paul Jähn (Germany)
  • Georgy Ivanov Ivanov (Kakalov) (Bulgaria)
  • Arnaldo Tamayo Méndez (Cuba)
  • Simion Dumitru-Dorin Prunariu (Romania)
  • Vladimír Remek (Czechoslovakia)
  • Pham Tuân (Vietnam)
  • Bertalan Farkas (Hungary)
Aleksandr Panayotov Aleksandrov (Bulgaria)