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Spaceflight (or space flight) is an application of astronautics to fly objects, usually spacecraft, into or through outer space, either with or without humans on board.Most spaceflight is uncrewed and conducted mainly with spacecraft such as satellites in orbit around Earth, but also includes space probes for flights beyond Earth orbit.
A space vehicle's flight is determined by application of Newton's second law of motion: =, where F is the vector sum of all forces exerted on the vehicle, m is its current mass, and a is the acceleration vector, the instantaneous rate of change of velocity (v), which in turn is the instantaneous rate of change of displacement.
Space travel can refer to: Spaceflight, flying into or through outer space; Spacefaring, to be capable of and active in space travel; Human spaceflight, space travel with a crew or passengers; Interplanetary spaceflight, travel between planets; Interstellar travel, travel between stars or planetary systems
The CST-100 (Crew Space Transportation-100) name was first used when the capsule was revealed to the public in June 2010. [20] The letters "CST" stand for Crew Space Transportation, [21] while "100" likely refers to the Kármán line [dubious – discuss], which is generally considered the boundary of space at 100 kilometers (62 mi) above Earth.
Falcon Heavy has the second highest payload capacity of any currently operational launch vehicle behind NASA's Space Launch System (SLS), and the fourth-highest capacity of any rocket to reach orbit, trailing behind the SLS, Energia and the Saturn V. SpaceX conducted Falcon Heavy's maiden launch on 6 February 2018, at 20:45 UTC. [7]
Compared to the hyperspace drives of other fictional universes, it differs in that a spaceship does not leave the normal space-time continuum and instead the space-time itself is distorted, as is made possible in the general theory of relativity. [7] The basic functional principle of the warp drive in Star Trek is the same for all spaceships.
Space Shuttle forward reaction control thrusters. In spaceflight, an orbital maneuver is the use of propulsion systems to change the orbit of a spacecraft. For spacecraft far from Earth—for example those in orbits around the Sun—an orbital maneuver is called a deep-space maneuver (DSM).
A space vehicle is the combination of a spacecraft and its launch vehicle which carries it into space. The earliest space vehicles were expendable launch systems , using a single or multistage rocket to carry a relatively small spacecraft in proportion to the total vehicle size and mass. [ 1 ]