Space

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Across
  1. 2. Is a "BOAT" for space
  2. 5. The "VIA LATTEA" is this
  3. 8. Is a planets out of sol system
  4. 9. Is a propulsion system for inter-planets travel
Down
  1. 1. This is a gas cluster
  2. 3. Is necessary to travel into space
  3. 4. Is a space agency
  4. 6. Is a natural satellit of Earth
  5. 7. There are billions of this in the universe