Across
- 3. Theory states the Earth was the center of the universe
- 5. A device to make distant objects appear closer
- 6. A person who studies space
- 7. Everything in space as a whole
- 10. The study of space beyond our atmosphere
- 11. The path of a object around another object in space
Down
- 1. Theory states that the sun is the center of the solar system
- 2. A hole in the surface of a planet or moon caused by a rock from space hitting the surface
- 4. When a object travels around another object Earth takes one year to complete a revolution around the sun
- 6. An imaginary line gong through the center of a spheres north and south poles
- 8. Earth takes one day to complete a rotation Earth spins on its axis
- 9. A force that pulls objects towards the center the Earth