. SpaceThis article is about the idea of space. For the space beyond Earths atmosphere (as in astronomy and spaceships), see outer space. For all other uses, see space (disambiguation).The idea of space has been of interest for philosophers and scientists for much of human history. The term is used somewhat differently in different fields of study, hence it is difficult to provide an uncontroversial and clear definition outside of specific defined contexts. Disagreement also exists on w
