Across
- 2. The force that pulls objects together.
- 4. Earth's natural satellite.
- 5. A tool used to look at distant objects.
- 9. A person trained to travel into space.
- 10. A vehicle used to travel into space.
- 12. The "Red Planet."
- 14. The path something follows around another object.
Down
- 1. A large object that travels around a star.
- 3. A ball of ice and dust that travels through space.
- 4. A rock from space that burns in Earth's atmosphere.
- 6. The planet we live on.
- 7. The planet with famous rings.
- 8. A huge collection of stars.
- 11. A giant ball of hot gas that gives off light.
- 13. The star at the centre of our Solar System.