Michele's Space Crossword

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Across
  1. 3. A space craft that operates outside the heliosphere
  2. 6. A research facility
  3. 7. Matter in an object
  4. 8. Another word for water
  5. 11. The planet in which we live on
  6. 13. A giant cloud of dust and sky
  7. 14. A bright star located in part of Ursa Minor
  8. 16. A part of Newton's laws
  9. 17. Something that doesn't let anything, even light out
  10. 18. The force that gets us back down when we jump
  11. 21. A measure of distance for space
Down
  1. 1. One and a half hours in minutes
  2. 2. Stars that make up pictures
  3. 4. A donut shaped celestial body containing with dwarf planets and comets
  4. 5. The name of a constellation and a galaxy (and a TV show)
  5. 8. A space telescope
  6. 9. A spacecraft that orbits around a planet
  7. 10. Best seen in air that's not polluted, very colorful and pretty
  8. 12. A system of stars closest to our solar system
  9. 15. Planets do this around a star
  10. 18. A system with planets, stars, nebulas, and other space like things
  11. 19. A round like object that orbits around a star
  12. 20. Luminous, white dots in the sky