Space

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Across
  1. 5. Center of solar system
  2. 6. First person in space
  3. 8. Hottest planet
  4. 9. Only planet unnamed by Roman's
  5. 12. First person to set foot on Earth's natural satellite
  6. 14. No longer a planet
  7. 16. First country to intervene in space
Down
  1. 1. Closest to the Sun
  2. 2. Planet named after Roman king of the Gods
  3. 3. Thing that wholes the solar system together
  4. 4. Side ways, rings
  5. 7. Named after Roman God of war
  6. 10. First animal in space
  7. 11. Number of planets in Solar System
  8. 13. Controversial Icy blue planet
  9. 15. Name of first animal in space