Space exploration

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Across
  1. 2. one of many large rocks that circle the sun
  2. 3. to establish a colony in (a place)
  3. 5. to change the environment of a planet so that it is more like another planet, especially so that it is more like Earth
  4. 7. poisonous
  5. 9. a vehicle used for travel in space
  6. 10. a small vehicle that can move over rough ground, often used on the surface of other planets, sometimes controlled from the earth.
Down
  1. 1. to attack a place with continuous shooting or bombs
  2. 4. not suitable for humans to live in.
  3. 6. a mass of dust and sand that has been lifted from the ground in very dry areas such as deserts and that is carried by the wind.
  4. 8. a form of energy that comes from a nuclear reaction