earth in space

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Across
  1. 3. when the moon passes between the earth and sun
  2. 5. the galaxy that includes the solar system
  3. 7. when most of the moon's dayside has come into view
  4. 10. brightest star seen from earth
  5. 14. when the moon moves into the earth's shadow
  6. 15. mainly made of gases
  7. 18. when the illuminated part of the moon phases away from earth
  8. 19. furthest known planet in the solar system
  9. 20. has a dusty cold desert ground
  10. 21. made up of the layers of gases surrounding a planet
Down
  1. 1. smallest planet
  2. 2. a region where the gravity is so strong that nothing can escape it
  3. 4. large celestial body of gas that is visible in the night sky
  4. 6. when the moon is a quarter way through its monthly journey
  5. 8. hottest planet
  6. 9. largest planet
  7. 11. the earth's only natural satallite
  8. 12. when one whole side of the moon can be seen
  9. 13. coldest planet
  10. 16. water covers 70% of it's surface
  11. 17. the invisible phase of the moon