Vocabulary 3rd period

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Across
  1. 2. A device used to make distant objects look much closer
  2. 4. A planets spin on its axis
  3. 8. Theory that states the sun is in the center of the solar system
  4. 10. Theory that the earth was the center of the universe
  5. 11. A force that pulls object 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 the the center of the north and south poles
  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 another