Space Definition Science

Noun the unlimited or incalculably great three dimensional realm or expanse in which all material objects are located and all events occur.

Space definition science. Space is usually thought to begin at the lowest altitude at which satellites can maintain orbits for a reasonable time without falling into the atmosphere. Space is treated in a number of articles. In astronomy and cosmology space is the vast 3 dimensional region that begins where the earth s atmosphere ends. Extent or room in three dimensions the space occupied by a body.

For a philosophical consideration of the subject see metaphysics. Space science encompasses all of the scientific disciplines that involve space exploration and study natural phenomena and physical bodies occurring in outer space such as space medicine and astrobiology. Space a boundless three dimensional extent in which objects and events occur and have relative position and direction. Space science definition any of the sciences involved in space travel or the exploration of space as space medicine.

From the perspective of an earthling outer space is a zone that occurs about 100 kilometers 60 miles above the planet where there is no appreciable air to breathe or to scatter light.