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Across 3. unidentified flying object 4. Device that orbits a planet 7. A human-looking robot 8. 186,000 miles per second, a speed impossible to exceed 13. Study of extremely low temperatures 15. Existing or coming from somewhere outside Earth and its atmosphere 16. moving backward or forward in time 18. an impossible situation created by traveling back through time 20. to move something using mental power or without traveling 22. a disk-shaped flying object believed to be an extraterrestrial spacecraft 23. a spaceship designed to travel between stars or star systems 24. an interstellar cloud of dust, hydrogen gas and plasma 25. space beyond the Earth's gravitational influence or beyond the orbit of the Moon 26. Assembly of stars, gas and dust 28. Very unfriendly, strongly opposed to somebody or something 29. a mechanical device that can be programmed to carry out instructions and perform complicated tasks usually done by people 32. propulsion systems that allow starships to enter hyperspace to traverse the vast distances of space at faster-than-light speeds 33. a star that suddenly increases dramatically in brightness and then fades to its original luminosity over a short period of months or years 34. Freezing of a corpse with the hope of restoring it later 35. Change in genetic material

Down 1. Air or climate in a given place 2. the study and design of intelligent agents, like robots or software 3. an ideal and perfect place or state where everyone lives in harmony and everything is for the best 5. a shield to protect something from damage by natural forces or enemy attack 6. event where a person witnesses an unidentified flying object 9. describes a being from another planet that has the appearance or characteristics of a human 10. Having electronically powered organs 11. Relating to human beings, Eventually dying 12. Genetically identical organism 13. A fictional being that is part-human, part-robot 14. Occurring among/ between stars 17. Imaginary creature from outer space 19. Object in space with strong gravitational pull that no matter or energy can escape 21. A fictional space in which laws of physics may be circumvented allowing faster-than-light travel or time travel 23. a stellar explosion that creates an extremely luminous object 27. Rocky object orbiting the sun 30. The attraction of bodies toward the center of the earth 31. The whole universe