Editing Space exploration (section)

===Spaceflight===
{{Main|Spaceflight|Astronautics}}
[[File:Delta-Vs for inner Solar System.svg|thumbnail|upright=1.1|[[delta-v budget|Delta-v's]] in km/s for various orbital maneuvers]]
''Spaceflight'' is the use of [[space technology]] to achieve the flight of [[spacecraft]] into and through outer space.

Spaceflight is used in space exploration, and also in commercial activities like [[space tourism]] and [[telecommunications satellite|satellite telecommunications]]. Additional non-commercial uses of spaceflight include [[Space observatory|space observatories]], [[reconnaissance satellite]]s and other [[Earth observation satellite]]s.

A spaceflight typically begins with a [[rocket launch]], which provides the initial thrust to overcome the force of [[gravity]] and propels the spacecraft from the surface of Earth. Once in space, the motion of a spacecraft—both when unpropelled and when under propulsion—is covered by the area of study called [[astrodynamics]]. Some spacecraft remain in space indefinitely, some disintegrate during [[atmospheric reentry]], and others reach a planetary or lunar surface for landing or impact.