Deep space

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Across
  1. 5. A large object that orbits a star.
  2. 6. A tool to see faraway stars and planets.
  3. 7. The area beyond Earth’s atmosphere.
  4. 10. An object that circles a planet.
  5. 12. A person trained to travel in space.
  6. 13. A vehicle used to explore outer space.
Down
  1. 1. The force that keeps us on the ground.
  2. 2. Earth's natural satellite.
  3. 3. An icy object that orbits the Sun.
  4. 4. When the Moon blocks the Sun.
  5. 8. A creature that might live on another planet.
  6. 9. A group of stars, planets, and gas in space.
  7. 11. A ball of burning gas in the sky.