Across
- 5. The layer of gases surrounding a planet that supports life on Earth
- 8. Earth’s only natural satellite and the first celestial body visited by humans
- 11. The curved path of a planet or satellite around another celestial body
- 12. A planet that orbits a star outside our Solar System
- 13. An optical instrument used to observe distant celestial objects
- 17. The science of how air moves around objects like aircraft and rockets
- 19. A natural shaking of Earth’s surface caused by movement of tectonic plates
- 20. Known as the Red Planet and a key target for future human missions
Down
- 1. A device that converts sunlight into energy to power satellites and spacecraft
- 2. An object placed in orbit to collect data or assist in communication
- 3. The system that produces thrust to move rockets and spacecraft
- 4. A trained individual who travels and works in space missions
- 6. A space rock that burns brightly when it enters Earth’s atmosphere
- 7. The invisible force that pulls objects toward one another, keeping planets in orbit
- 9. A vehicle that uses thrust to travel beyond Earth’s atmosphere
- 10. A space telescope that looks deeper into the universe than ever before, studying stars and galaxies from the early cosmos
- 14. The platform from which rockets lift off into space
- 15. The NASA mission series that successfully landed humans on the Moon
- 16. The scientific theory that explains the origin and expansion of the universe
- 18. A vehicle designed to travel in outer space for exploration or transport