Across
- 3. The reusable spacecraft used by NASA for several missions.
- 7. An activity where astronauts leave the spacecraft while in space.
- 8. The historic event when humans first stepped on the Moon in 1969.
- 11. The first living creature to orbit Earth, a Soviet space dog.
- 12. Autonomous robots sent to explore the surface of Mars.
- 14. The first U.S. space program that sent astronauts into space.
- 15. The spacecraft that carried the first human, Yuri Gagarin, into space.
- 17. The U.S. program that prepared astronauts for the Apollo missions.
Down
- 1. The part of the spacecraft that landed on the Moon.
- 2. The collaborative efforts between countries in space exploration.
- 4. A term for a Russian or Soviet astronaut.
- 5. The NASA program that achieved the Moon landing.
- 6. The first human to travel into space.
- 7. The world's first artificial satellite launched by the Soviet Union.
- 9. The international space station where astronauts conduct experiments.
- 10. The space telescope that provides stunning images of the cosmos.
- 11. A series of Soviet spacecraft that explored the Moon.
- 12. The Russian space station that orbited Earth for 15 years.
- 13. The Russian spacecraft still used for human spaceflight.
- 16. The path an object takes as it revolves around another celestial body.