Space Exploration

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Across
  1. 2. layers of gas that surround planets
  2. 5. the biggest planet in our solar system
  3. 6. known as the "Red Planet"
  4. 8. a cloud of dust and gas in space
  5. 9. Famous planet for its rings
  6. 10. groups of stars
  7. 14. a person that studies space
  8. 15. earths nature satellite
  9. 17. The planet closest to the sun
  10. 18. name of our solar system
  11. 19. Saturn has ______ moons (expanded form)
  12. 21. the centre of our solar system
Down
  1. 1. a usually tubular optical instrument for viewing things far away
  2. 3. a person that goes into space
  3. 4. Neil _______. The first man on the moon
  4. 7. The planet we live on
  5. 11. furthest planet from the sun
  6. 12. _______ space station is a habitable satellite station
  7. 13. closest to earth in size
  8. 16. a path an object takes while in space
  9. 20. ______ Gagarin. The first man in space