Space Crossword Puzzle

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Across
  1. 2. A planet must be in a _____ shape
  2. 5. On Average Closest Planet to Every Planet
  3. 7. Way To Measure Distance At a Cosmic Scale
  4. 9. Moon With Water
  5. 10. What Makes Venus So Hot
  6. 11. Popular Space Movie
Down
  1. 1. Planet That Rains Diamonds
  2. 3. Closest Galaxy To Us
  3. 4. Massive Black Hole
  4. 6. Russian Astronaught
  5. 8. Gas Giant
  6. 9. Planet With Life On It