Sci-Fi Crossword

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Across
  1. 5. event where a person witnesses an unidentified flying object
  2. 6. assembly of stars, gas and dust
  3. 8. space beyond the Earth's gravitational influence or beyond the orbit of the Moon.
  4. 10. the idea of creating a place or object that is free from the force of gravity.
  5. 13. to move something using mental power or without traveling
  6. 15. an ideal and perfect place or state where everyone lives in harmony and everything is for the best
  7. 17. a star that suddenly increases dramatically in brightness and then fades to its original luminosity over a short period of months or years
  8. 19. the whole universe
  9. 20. modifying a planet, moon, or other body so its atmosphere, temperature, or ecology is similar to those of Earth in order to make it habitable by humans./ modifying a planet, moon, or other body so its atmosphere, temperature, or ecology is similar to those of Earth in order to make it habitable by humans.
  10. 21. relating to human beings, Eventually dying
Down
  1. 1. object in space with strong gravitational pull that no matter or energy can escape.
  2. 2. having electronically powered organs
  3. 3. a world other than our own. Similar to parallel universe.
  4. 4. nova a stellar explosion that creates an extremely luminous object
  5. 7. air or climate in a given place
  6. 9. an ideal society that becomes intolerable
  7. 11. the attraction of bodies toward the center of the earth.
  8. 12. genetically identical organism
  9. 14. rocky object orbiting the sun
  10. 16. imaginary creature from outer space.
  11. 18. a human-looking robot