Across
- 1. having to do with the moon
- 4. the height above a point
- 5. an invisible force that keeps us on the earth
- 6. a group of stars that paints a picture in the sky
- 8. a radio signal used to locate objects
- 9. when the earth or the moon causes a shadow
- 12. balls of ice and rock traveling through space
Down
- 2. movement around an object
- 3. the air surrounding a planet
- 7. a person who studies space
- 10. holes made by meteors and asteroids
- 11. having to do with the sun