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the flying of manned or unmanned spacecraft into or in outer space.


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  • Space-group

    noun, Crystallography. 1. a set of symmetry elements that brings a periodic arrangement of points on a Bravais space lattice to its original position.

  • Space-heating

    noun 1. the heating of a limited area, as a room, by means of a heater (space heater) within the area.

  • Spacehog

    noun a person taking up a lot of physical space, esp. that which belongs to or is needed by others

  • Space invaders

    noun (functioning as sing) 1. trademark a video or computer game, the object of which is to destroy attacking alien spacecraft

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