A hypothetical cable, connecting the ground with space, which includes an elevator used to lift payloads or people into orbit.

(physics) Alternative form of spacetime

Any vehicle capable of travelling repeatedly between the Earth's surface and outer space carrying people or cargo.

A toy consisting of a large inflated rubber ball upon which one bounces.

An unoccupied space where something may be stored / An unoccupied area or volume. / Vacuum; a space containing nothing at all

Heating of rooms within buildings.

(crystallography, mineralogy) The set of all symmetry operations that can be applied to a given crystal without changing it.

plural of space hopper

The period from the about the time of the launch of Sputnik in 1957 to the present day, during which people ventured into space. / (attributive) Redolent of the space age; appearing futuristic or modern.

That part of an electron tube in which electrons interact with a modulated field