Space puzzle

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Across
  1. 3. Planet known as evening star
  2. 6. name of earth's Galaxy
  3. 7. a hole in space that attracts everything
  4. 8. Large pieces of rock found between planets
  5. 10. the path of revolution of a planet
Down
  1. 1. a group of stars making a shape
  2. 2. infinite in area and space
  3. 4. Other name of moon that revolves around Planets
  4. 5. A large number of stars revolving around a centre
  5. 9. Planet with rings