Geocentric vs. Heliocentric

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Across
  1. 4. The study of celestial objects, space, and the universe as a whole.
  2. 5. A star and the group of planets and other celestial bodies that are held by its gravitational attraction and revolve around it.
  3. 7. An astronomer who discovered the heliocentric theory.
  4. 8. The galaxy in which Earth and the Sun are located
  5. 10. Model A model showing Earth located at the center of the universe
  6. 11. Model A model showing the Sun as a fixed point in the center of the universe, with objects revolving around it.
  7. 12. All of space and the matter space contains.
Down
  1. 1. An astronomer who discovered the geocentric theory
  2. 2. A theory that says the universe began as a small point that expanded rapidly about 13.7 billion years ago
  3. 3. A large grouping of stars in space.
  4. 6. An astronomer who used a telescope to support the heliocentric theory
  5. 9. A scientist who studies objects in space, such as black holes, galaxies, moons, planets, stars, etc.