Across
- 3. - "Relating to a galaxy"
- 5. - "A group of stars forming a recognizable pattern"
- 8. - "A vehicle designed for travel or operation in outer space"
- 12. - "A large spacecraft in orbit around the Earth"
- 13. - "An instrument for observing distant objects in space"
- 17. - "Travels to space in a spacecraft"
- 18. - "A cloud of gas and dust in space"
- 19. - "An object that orbits a planet"
Down
- 1. - "The path that an object takes around another in space"
- 2. - "An area in space with intense gravitational pull"
- 4. - "A vehicle that travels into space"
- 5. - "A celestial object with a bright tail"
- 6. - "A rocky object in space, smaller than a planet"
- 7. - "Relating to the universe as a whole"
- 9. - "Relating to or originating from outside Earth"
- 10. - "A small particle from space that burns upon entering Earth's atmosphere"
- 11. - "Relating to the regions of space between stars"
- 14. - "A vast system of stars, gas, and dust"
- 15. - "A giant ball of hot, glowing gases"
- 16. - "Orbits the sun; Earth is one of these"