Space

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Across
  1. 2. A region with no air or atmosphere
  2. 5. The red planet
  3. 6. A vehicle designed for travel in space
  4. 9. A person trained to travel in space
  5. 12. The closest star to Earth
  6. 13. A large body orbiting a planet
  7. 14. The term for human-made object orbiting Earth
  8. 15. The only planet known to support life
  9. 18. The first person to walk on the Moon
  10. 19. The process of a spacecraft entering Earth’s atmosphere
Down
  1. 1. A telescope in space
  2. 3. The force that keeps planets in orbit
  3. 4. The largest planet in our solar system
  4. 7. The planet known for its rings Saturn
  5. 8. The boundary of Earth’s atmosphere and outer space
  6. 10. The phase when the Moon is completely visible
  7. 11. The galaxy that contains our solar system
  8. 13. A rock from space that hits Earth
  9. 16. The path an object takes as it revolves
  10. 17. The planet known for its tilt and blue color