Space and cosmos

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Across
  1. 4. It might happen in the future
  2. 5. abreast of the times
  3. 6. In the play
  4. 7. relating to the sun
  5. 10. alternating current
  6. 11. home of human
  7. 14. circumstances atmosphere
Down
  1. 1. impracticality
  2. 2. Information
  3. 3. Things that are mentioned
  4. 6. in the distance far away beyond
  5. 8. brightness
  6. 9. arrive ，get to
  7. 12. neither one，no one
  8. 13. organization