Across
- 3. A small, rocky object inside the Earth's atmosphere
- 5. Earth has one of these, and Mars has two of these.
- 8. the galaxy that contains our solar system
- 10. This planet is known for its rings.
- 12. a huge planet made mostly of gas
- 15. a large object that revolves around a star
- 17. the path an object takes around a star or planet
- 18. The act of one object blocks another, often causing light to be blocked from view
- 19. a collection of gas, dust, and solar systems
- 20. A group of star that creates a picture
- 22. This planet is named after the Roman goddess of love.
Down
- 1. an object with a tail that orbits the sun; made of ice
- 2. a large cloud of dust where planets and stars are born
- 4. a system made up of a star and the objects that revolve around it
- 6. a large,rounded object that revolves around a star
- 7. a person who goes into space
- 9. an area in space with gravity so high that not even light can escape
- 10. an object made of extremely hot gas and plasma; our sun is one
- 11. This planet is known for its great red spot.
- 13. The kind of planet that Pluto is
- 14. A meteor that has fallen to Earth
- 16. a tool used to look into space
- 21. abbreviation for International Space Station