Space Crossword by Nayan

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Across
  1. 3. The name of our planet
  2. 6. How much matter is in an object
  3. 8. Contains everything in space
  4. 10. A natural satellite of a planet
  5. 11. A scientist that specializes in space fields
  6. 14. Spherical celestial body orbiting the Sun
  7. 15. Collection of large and small bodies that orbit the sun
  8. 17. An icy, small body, like a ball of ice, rock, gas, and dust
  9. 18. Like a giant cloud pf dust and gas in space
  10. 19. A hypothetical being from another planet
Down
  1. 1. Measure of gravitational pull on an object
  2. 2. Celestial body of gas that emits light
  3. 3. From outside earth, beyond our planet
  4. 4. Distance light travels in one year
  5. 5. Someone who does space travel
  6. 7. The gassy star that the earth orbits
  7. 9. Chunk of rocky objects that orbits the sun
  8. 12. Layers of gas we need to survive
  9. 13. Collection of stars, gas, and dust
  10. 16. A continuous area or expanse