Astronomy

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Across
  1. 3. a theory that the Earth was the center of the universe
  2. 5. technology to make distant things much closer
  3. 6. a person who studies space
  4. 7. everything in space altogether
  5. 10. The study of space beyond our atmosphere
  6. 11. an object going around another object in space
Down
  1. 1. The theory that states the sun is the center of the solar system.
  2. 2. A hole in the surface of a planet or moon caused by a rock from space hitting the surface.
  3. 4. When an object travels around another object
  4. 6. An imaginary line going through the center of a sphere’s north and south poles.
  5. 8. a planets spin on its axis
  6. 9. a force that pulls things to the Earth