Related Clues:
- Russian spacecraft series
- Soviet space program
- Russian spacecraft
- Russian launch vehicle
- Soviet spacecraft
- __ 1: first manned space mission carrying Yuri Gagarin
- Cosmonaut carrier
- Russian space program
- ___ 1, Yuri Gagarin's spacecraft
- Russian space program started in the 1960s
- Cosmonaut's craft
- Early Soviet space program
- Soviet spacecraft or rocket
- Series of manned Soviet orbiting spacecraft
- Series of six manned Soviet orbiting spacecraft