From Wikipedia, the free encyclopedia.
Space is the relatively empty parts of the universe, outside the atmospheress of planets. It is sometimes called "outer space" to distinguish it from airspace and terrestrial locations. It may be considered to start at a height of ca. 100 km above the Earth's surface. For the term in general see Space.
Space science, or the space sciences, includes several major fields, such as:
- Astronomy and Astrophysics
- Microgravity environment
- Plasma physics
- Space transport
- Space exploration
- Space colonization