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Across
  1. 5. system it consists of8 planets that orbit around the sun
  2. 7. The scientist who studies sun, moon , stars
  3. 8. a large hole
Down
  1. 1. a place where scientists study the space
  2. 2. a machine that scientists use to look at planets and moons
  3. 3. The center of something
  4. 4. rocky small bodies around the sun
  5. 6. contains many solar systems