Sci-Fi Project Crossword

A being that looks like us but on a different planet.
A space-time continuum in which it is possible to travel faster than light.
A narrow, intense beam of light usually used as a weapon.
An invisible barrier of exerted strength or impetus.
Concern with events and trends of the future or which anticipate the future.
The idea of creating a place or object that is free from the force of gravity.
Space beyond the Earth's gravitational influence or beyond the orbit of the Moon.
An impossible situation created by traveling back through time, for example, when a man travels back and kills his father, so that he himself could never exist.
A ________ shield is an enclosure used to block electromagnetic fields.
Streams of high-velocity Helium nuclei, composed of two protons (alpha particles) emitted from radioactive elements.
Very short electromagnetic waves usually produced by radioactive disintegration.