Galactic Games Crossword Puzzle

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Across
  1. 2. — A person trained to travel and work in space
  2. 7. — Known as the "Red Planet"
  3. 9. — A group of stars that forms a picture or shape
Down
  1. 1. — The invisible force that pulls things down and keeps planets in place
  2. 3. — A tool used to see faraway things, like stars and planets
  3. 4. — A vehicle astronauts use to travel among the stars
  4. 5. — A creature that might come from another planet
  5. 6. — The planet we live on
  6. 8. — A big round world that circles a star