Across
- 4. - Huge group of stars.
- 5. - Used to launch spacecraft.
- 7. - Earth's natural satellite.
- 11. - The Sun is an example.
- 12. - Earth is one of these.
- 14. - Used to see distant objects in space.
- 15. - Path a planet takes around a star.
Down
- 1. - Force that keeps us on the ground.
- 2. - Person who travels to space.
- 3. - Icy object with a tail in the sky.
- 6. - Object that orbits a planet.
- 8. - Round hole on a celestial body.
- 9. - Red planet named after a Roman god.
- 10. - Imaginary beings from outer space.
- 13. - Relating to the Sun.