Star crossword

123456789101112131415161718192021
Across
  1. 3. a telescope
  2. 4. the universe that we live in
  3. 8. Ursa minor
  4. 10. when you rotate around the sun
  5. 12. a far satellite
  6. 15. a place that orbits the earth
  7. 16. we live here
  8. 17. a giant cloud of dust
  9. 18. how much we weigh
  10. 20. where we live
  11. 21. massive ball of gas in space
Down
  1. 1. a dying star collapses
  2. 2. a galaxy
  3. 3. the simplest element
  4. 5. very long travel
  5. 6. a donuts shaped region
  6. 7. three stars
  7. 9. they fly in space
  8. 11. what holds us down
  9. 13. stars that connect in the sky
  10. 14. an object in motion stays in motion
  11. 19. all the planets