space

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Across
  1. 2. Rocket used by NASA for space missions
  2. 5. First living creature in orbit
  3. 6. Famous Russian spacecraft
  4. 7. First human in space
  5. 9. Soviet astronaut
  6. 12. Soviet Mars probe
  7. 14. Soviet spacecraft for lunar exploration
  8. 15. Space launch vehicle
  9. 17. Series of US scientific satellites
  10. 18. NASA's first human spaceflight program
  11. 20. Outer space astronaut activity
Down
  1. 1. NASA's program for space travel
  2. 3. first American to orbit the Earth
  3. 4. Apollo spacecraft part
  4. 8. Soviet human spaceflight series
  5. 10. NASA's moon-landing program
  6. 11. Moon-exploring spacecraft
  7. 13. First artificial satellite launched
  8. 16. Competition between US and USSR
  9. 19. Early US satellite program