Across
- 3. A collection of stars that looks like an object
- 6. A system made of a sun and the objects that revolve around it.
- 7. The galaxy that our solar system is in
- 9. A planet with a great red spot
- 11. Mars has this many moons.
- 12. How long it takes for Earth to make one rotation
- 13. An instrument used to look into space
- 15. An object made of ice and rock that orbits the sun; has a tail
- 17. The path an object takes around a star or planet
- 19. The farthest normal planet in our solar system
- 20. The kind of planet that Pluto is
Down
- 1. A planet named after the goddess of love in Roman mythology
- 2. It contains everything that exists
- 4. A collection of gas, dust, stars, and solar systems.
- 5. The sun is one of these.
- 7. It revolves around the Earth.
- 8. A person who travels to space
- 10. An area in space where the gravity is so strong that even light cannot escape
- 14. When one object in space covers another object
- 16. A large object that revolves around a star
- 18. A planet known for its rings