Asteroids

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Across
  1. 2. harmful
  2. 5. what moon do
  3. 9. where we live
  4. 10. space organization
  5. 11. a 1000 meter size
Down
  1. 1. space rocky object
  2. 3. atoms fusion
  3. 4. Near Earth objects
  4. 6. we use them to go to space
  5. 7. something to see the stars
  6. 8. a progressive advance
  7. 12. a longitude measurement