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Investigation of interplanetary or interstellar space, its properties, biology and the bodies that exist within it.

plural of Space Shuttle

(informal) A place where one may crash (stay informally).

plural of space velocity

plural of space station

plural of space invader

(computer science) A measure of the amount of space, or memory required by an algorithm to solve a given decision problem. An informal analogy would be the amount of scratch paper needed while working out a problem with pen and paper.

plural of space bar

(topology and algebra) A space obtained from another by identification of points that are equivalent to one another in some equivalence relation.