hypothetical – adj. involving or based on a suggested idea or theory; based on a hypothesis
propulsion – n. a force that moves something forward
compact – adj. smaller than other things of the same kind
arrange – adj. organized in a certain order or position
warp – adj. related to speed that is extremely fast, even faster than light, usually found in works of science fiction
interstellar – adj. between the stars
prototype – n. a first model of something that serves as the basis for future developments