Outer space

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Across
  1. 3. Eight objects that orbit the Sun.
  2. 5. An area outside Earth's atmosphere.
  3. 6. The only planet with life.
  4. 7. Small rocky objects that orbit the Sun.
  5. 9. Objects that orbit planets.
Down
  1. 1. A natural satellite.
  2. 2. A layer of gas surrounding Earth.
  3. 4. Hot, bright objects.
  4. 8. Can be used to see planets and stars.
  5. 9. It is a star.