Across
- 2. An object that orbits a planet
- 4. A large group of stars
- 6. system The Sun and everything orbiting it
- 7. The star at the centre of our solar system
- 8. The path one object takes around another
- 9. Everything that exists, including all matter and energy
- 10. One full orbit of the Earth around the Sun
- 13. Way The galaxy we live in
Down
- 1. Spinning on an axis
- 2. Caused by Earth’s tilted axis
- 3. A large body orbiting a star
- 4. The force that keeps planets in orbit
- 5. A natural satellite orbiting a planet
- 6. A massive ball of burning gas
- 11. An imaginary line a planet spins around
- 12. One full rotation of the Earth