Heliocentric Elise Goldman

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Across
  1. 2. His observations showed that ____ was not the only object but it could be orbited
  2. 6. Who developed the first detailed model of the solar system
  3. 7. Kepler three principles also known today as Kepler's ____
Down
  1. 1. who invented the scientific method
  2. 3. ____ went through phases similar to the phases of Earth's moon
  3. 4. orbit faster when closer than the sun The 2nd law
  4. 5. Kepler was from