Space

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Across
  1. 3. First planet from the Sun
  2. 5. The biggest planet in the Solar System, has rings
  3. 6. The center of the Solar System
  4. 7. Second dwarf planet from the Sun
  5. 8. Celestial body proved to be fake but should be inside Mercury's orbit
  6. 10. The planet you live on, has one moon
  7. 12. Earth's "Evil twin"
  8. 13. Undiscovered object beleived to have a 600 AU wide orbit
Down
  1. 1. Fourth planet from the Sun, has two moons
  2. 2. Seventh planet from the Sun
  3. 4. First dwarf planet from the Sun
  4. 6. The second biggest planet, has rings
  5. 9. Eighth planet from the Sun
  6. 11. Hypothetical object believed to have crashed into Earth during formation
  7. 13. Third dwarf planet from the Sun
  8. 14. Celestial body that has an unstable orbit, also beleived to have crashed into Uranus