Fear of space

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Across
  1. 3. living things from space
  2. 6. never ending
  3. 8. Another word for large
  4. 9. everything that is the Universe
  5. 11. not being able to understand
Down
  1. 1. the system of which billions of stars connects
  2. 2. Fear of space
  3. 4. not stopping
  4. 5. extreme fear
  5. 7. not reasonable
  6. 10. bottomless space