Space

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Across
  1. 2. The time taken for the Moon to orbit the Earth once
  2. 6. An icy object that has a long tail
  3. 7. Third rock from the Sun
  4. 9. A group of stars seen in the night sky are given names
  5. 11. The name of the space project that landed man on the Moon
  6. 14. Name given to a star exploding
  7. 18. Unidentified flying objects
  8. 19. Billions of stars form this structue
  9. 20. A rock from space
  10. 22. A plant that has a ring aound it
  11. 23. No longer called a planet
  12. 24. Number of moons on Mars
  13. 25. The brightest star seen from Earth
  14. 27. A belt of rocks between Mars and Jupiter
  15. 30. 365 days
  16. 31. A metal only created in exploding stars
Down
  1. 1. We need this for life
  2. 3. Motion of planets around the Sun
  3. 4. Where you can find the Sea of Tranquility
  4. 5. Hottest planet in the Solar System
  5. 7. When the Moon covers the Sun completely
  6. 8. The name of our galaxy
  7. 10. Name given to planets orbiting other stars
  8. 12. A gas needed for life
  9. 13. The force that keeps planets in orbit
  10. 14. A film which had two Suns
  11. 15. The planet with a giant red spot
  12. 16. A planet that looks like a red star from Earth
  13. 17. They once ruled the Earth
  14. 21. A moon of Jupiter
  15. 26. Superman gets his powers frm this
  16. 28. Largest moon of Saturn
  17. 29. A metal at the cor of the Earth