sun, moon and earth

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Across
  1. 3. a satellite launched in India to moon
  2. 4. craters are huge ditches that were formed when huge pieces of rock
  3. 6. the planet on which we live on huge ball
  4. 7. the middle layer of earth
  5. 8. the innermost layer of earth
Down
  1. 1. the star in the center of the solar system
  2. 2. the outermost layer of earth
  3. 4. the natural satellite around the earth
  4. 5. a small object that revolves around a planet
  5. 6. how many planet our in the solar system