Across
- 2. Having to do with the moon
- 4. An object that revolves around another object in space
- 9. A group of objects that orbit a star
- 11. A large object in space that is made of burning gases and produces its own light. It is many times larger than any planet
Down
- 1. A force of attraction between objects that is due to their masses
- 3. All of space and everything in it
- 5. A piece of rock or metal made up of material similar to that which formed the planets
- 6. The angling earth rotates on
- 7. A large group of single stars
- 8. A ball of frozen dust and rock that orbits the sun and has a tail that glows
- 10. The center of our solar system