Across
- 3. = A rocky object that orbits the Sun
- 4. = A vehicle used to travel into space
- 5. = A huge collection of stars
- 6. = An instrument used to observe distant objects
- 9. = The force that keeps planets in orbit
- 10. = A vehicle designed for travel in space
- 12. = The natural satellite of Earth
- 13. = The path of an object around another object in space
Down
- 1. = A person who travels into space
- 2. = Everything that exists in space
- 7. = A large object that orbits a star
- 8. = A bright object that produces its own light
- 10. system = The Sun and all the objects that orbit it
- 11. = An icy object that develops a tail near the Sun