Across
- 3. - First artificial Earth satellite (1957)
- 4. - First animal in space, a Soviet dog
- 5. - First U.S. human spaceflight program
- 8. one-word answers and clues should make for an engaging crossword puzzle on the topic of the Space Race.
- 10. - First human in space, Yuri ___ (1961)
- 11. - Returning safely to Earth's surface
- 14. - Relating to the moon
- 15. - Russian spacecraft series
Down
- 1. - Moon landing program
- 2. - Launch of a rocket
- 3. - Rocket used in Apollo missions
- 6. - Russian astronaut
- 7. - U.S. president who initiated the Moon mission
- 9. - Extravehicular activity in space
- 12. - U.S. space agency
- 13. - The path of a space object around a celestial body