Across
- 2. A device used to make distant objects look much closer
- 4. A planets spin on its axis
- 8. Theory that states the sun is in the center of the solar system
- 10. Theory that the earth was the center of the universe
- 11. A force that pulls object towards the center of the earth, other planets, or moons
- 12. The study of space beyond our atmosphere
Down
- 1. A person who studies space.
- 3. Everything in space as a whole
- 5. AN imaginary line going the the center of the north and south poles
- 6. The path of an object around another object in space
- 7. A hole in the surface of a planet or moon caused by a rock from space hitting the surface
- 9. When an object travels around another