Why are rockets the only carriers of satellight into space?
Answers
launch vehicle or carrier rocket is a rocket used to carry a payload from Earth's surface through outer space, either to another surface point (Sub-orbital transportation), or into space (Earth orbit or beyond). A launch system includes the launch vehicle, launch pad, vehicle assembly and fuelling systems, range safety, and other related infrastructure.[1][not verified in body]
Suborbital launch vehicles include ballistic missiles, sounding rockets, and various crewed systems designed for space tourism or high-speed transport. Orbital or escape launch vehicles must be much more powerful and typically incorporate two to four rocket stages to provide sufficient delta-v (change in velocity) performance. Various rocket fuels are used, including solid rocket boosters and cryogenic fuels fed to rocket engines.
Most launch vehicles are expendable i.e. used only once and destroyed or abandoned during the flight. Attempts to reduce per-launch costs have led to reusable launch systems, in which part of the launch vehicle is recovered and reused for another flight. Multiple classes of launch vehicle exist for use with differing launch sites, payload mass, target orbits, price points, etc. Numerous countries have sought to develop indigenous launch vehicles for use in national space programs.