Across
- 5. Scientist who launched the first liquid-fueled rocket
- 7. Instrument used to view distant objects
- 9. First American manned space program
- 10. Second American manned space program
- 12. Program that landed humans on the Moon
- 13. Planet explored by Curiosity Rover
- 14. Building used to observe natural phenomena in space
- 15. First person to walk on the Moon
- 16. Abbreviation for the International Space Station
- 18. Space shuttle lost in a 2003 disaster
- 19. Space shuttle lost in a 1986 disaster
- 21. Mars rover that landed in 2012
Down
- 1. America's first satellite
- 2. Object that travels around a planet
- 3. Uncrewed spacecraft that gathers information
- 4. Current NASA program returning humans to the Moon
- 6. Path an object follows around another object
- 8. Reusable spacecraft program
- 11. Apollo 11 astronaut who remained in lunar orbit
- 12. Scientist who studies space
- 17. Heavy-lift rocket used for Apollo missions
- 20. Famous space telescope launched in 1990
