Astronomy Crossword #1

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Across
  1. 5. The 'Universe' is made up by many of these
  2. 8. The path a planet takes around another planet/star
  3. 9. The force that prevents Earth from being pulled into the Sun
  4. 10. Our solar system formed from the nebula of a...
  5. 11. The 'Milky Way' is an example of a/an...
Down
  1. 1. A nebula will flatten into this when it begins to more rapidly rotate
  2. 2. The name of our solar system
  3. 3. The average distance between Earth and the Sun
  4. 4. Method used to measure distances to stars
  5. 6. The spinning of a planet about its axis
  6. 7. The force of attraction between two objects with mass