Across
- 3. A Russian or Soviet space explorer.
- 4. A spacecraft designed for repeated trips between Earth and space.
- 6. The most impactful space engineer and business person ever
- 8. Chief Soviet rocket engineer and spacecraft designer.
- 10. Period of political and military tension between the US and USSR.
- 12. US government agency responsible for the nation's civilian space program.
- 14. Competition for supremacy in nuclear warfare between the US and USSR.
- 15. Competition between the US and USSR for space exploration supremacy.
- 16. Path of a body as it revolves around another body in space.
- 19. The first US human spaceflight program.
- 20. Event marking the arrival of a spacecraft on the moon's surface.
- 22. Primary launch site for US human space flights.
- 24. US program that developed space travel techniques to support Apollo.
- 25. An object that orbits planets or moons.
- 28. The first artificial Earth satellite, launched by the USSR.
Down
- 1. First person to walk on the Moon.
- 2. Space telescope launched into low Earth orbit in 1990.
- 5. The US's first space station.
- 7. First human in space.
- 9. The USSR's spacecraft series that carried the first human to space.
- 11. Vehicle used to launch into space.
- 13. A US space explorer.
- 17. World's first and largest space launch facility located in Kazakhstan.
- 18. US President who pledged to land a man on the Moon.
- 20. Soviet/Russian space station that operated in low Earth orbit.
- 21. US program that landed the first humans on the Moon.
- 23. Relating to the Moon.
- 25. Series of spacecraft designed for the Soviet space program.
- 26. The first animal to orbit Earth, sent by the USSR.
- 27. International Space Station, a collaborative project including the US and Russia.