space physics

Space physics, also known as space plasma physics, is the study of plasmas as they occur naturally in the universe. As such, it encompasses a far-ranging number of topics, including the sun, solar wind, planetary magnetospheres and ionospheres, auroras, cosmic rays, and synchrotron radiation. Space physics is a fundamental part of the study of space weather and has important implications not only to understanding the universe, but also to practical every-day life, including the operation of communications and weather satellites.
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The term SPACE (capitalized) can refer to:, a Canadian science-fiction channelThe Society for Promotion of Alternative Computing and EmploymentDSPACE, a term in computational complexity theoryThe SPACE suite of servers and programs for analyzing structures of biomolecules and their complexes (the tools for Structure Prediction and Analysis based on Complementarity with Environment) [1]
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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 whether space itself can be measured or is part of the measuring system. (See Space in philosophy.) Science considers space to be a fundamental quantity (a quantity which can not be defined via other quantities because other quantities — like force and energy — are already defined via space). Thus an operational definition is used in which the procedure of measurement of space intervals (distances) and the units of measurement are defined. Because this is the only available in science definition of space, then all known properties of space follow from this very definition.
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