Beijing sees the Tiangong and Shenzhou dockings as the next phase in its step-by-step approach to acquiring the skills of human spaceflight operations.

By 1999, he is chairman of the National Council of Astronautics, in charge of overseeing all American spaceflight operations.

Orbit insertion is the spaceflight operation of adjusting a spacecraft's momentum, in particular to allow for entry into a stable orbit around a planet, moon, or other celestial body.

Military or commercial aviation experience is valuable, but it is far from sufficient qualification for human spaceflight operations.

The spaceport will be operated by the state-run Korea Aerospace Research Institute and will have contain features necessary for spaceflight operation having a launch tower, a control tower, rocket assembly and test facilities and space simulators.

At this point, Lunney became Vice President and Program Manager of the United Space Alliance's spaceflight operations in Houston; he stayed in this position until his retirement in 1999.

The stated objective of the Tier One program is to demonstrate suborbital human spaceflight operations at low cost.

Efforts have been made within spaceflight operations to identify factors that are important for selecting individual crew members for long duration spaceflight.

'My office was told you're here to check on our spaceflight operations, yes?'

Manned spaceflight operations made frequent use of this method.