Astronomy

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