CROOS WORDS

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Across
  1. 2. satellite around planet earth (4)
  2. 5. there are more of these than grains of sand on Earth (5)
  3. 6. the distance light travels in a year (5,4)
  4. 7. first dog in space (5)
  5. 8. Gagarin first man in space (4,7)
  6. 10. births stars and galaxys (9)
  7. 11. the gas mainly made up of the sun (8)
Down
  1. 1. name of space mission that went to the moon (6)
  2. 2. A day on this planet is longer than a year on that planet (7)
  3. 3. north America space agency (4)
  4. 4. destroy stars and galaxys (10)
  5. 9. what space is because of no noise (7)
  6. 12. Armstrong first man on the moon (4,9)