JOURNEY THROUGH SPACE

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Across
  1. 2. A vehicle used to travel into space.
  2. 3. An icy object that develops a tail near the sun.
  3. 4. Earth's natural satellite
  4. 8. A large object that move around a star.
  5. 9. An object that orbits a planet
  6. 10. A person trained to travel in space.
Down
  1. 1. A instrument used to observe distant objects in space.
  2. 5. The path followed by a planet or satellite
  3. 6. The red planet next to Earth.
  4. 7. A huge collections of stars,planets and gas.