outer space

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Across
  1. 4. – Tool for observing distant objects in space.
  2. 5. – A vehicle used to travel into space.
  3. 7. – A system of stars, planets, and dust held together by gravity.
  4. 9. – The path an object takes around another in space.
  5. 10. – U.S. space exploration agency.
Down
  1. 1. – A space object with a glowing tail.
  2. 2. – A person trained to travel in space.
  3. 3. – A space rock that burns in Earth’s atmosphere.
  4. 6. – A large body orbiting a star.
  5. 8. – Earth’s natural satellite.