Across
- 4. Theory that the Earth was the center of the Universe.
- 6. A planet’s spin on its axis.
- 8. A device used to make distant objects appear much closer.
- 10. The path of an object around another object in space.
- 11. Theory that states the sun in the center of the solar system.
- 14. takes 1 day to complete a full rotation.
Down
- 1. The study of space behind our atmosphere
- 2. Everything in space as a whole.
- 3. A force that pulls objects towards the center of the Earth, other planets or moons.
- 5. someone who studies space
- 7. takes 1 year to complete a revolution around the sun.
- 9. An imaginary line going through the center of a sphere’s north and south poles.
- 12. A hole in the surface of a planet or moon caused by a rock from space hitting the surface.
- 13. When an object travels around another.