SPACE

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Across
  1. 3. a person who goes to live in a new country or region
Down
  1. 1. to send settlers to take control of an area
  2. 2. hole a theorised connection or tunnel between two areas in space allowing for rapid travel over great distances
  3. 3. a vehicle used to travel in space
  4. 4. to transform a planet so it can support human life