Yu Xiaoming is a colonel's staff officer of the Space Operations Test Bureau of the General Armament Department of the China People's Liberation Army; As China's missile satellite launching agency,

Coordinate the work.

Astronauts, or astronauts, are full-name astronauts, referring to people who take space flight as their profession or have flown in space. of course

The standards of space flight are not completely unified. In the United States, people over 80 kilometers (50 miles) above sea level are called Yu.

Astronaut (astronaut) The space flight defined by the International Aviation Federation (FAI) needs to exceed100km. As of April 2004, 18

So far, according to the definition of the United States, a total of 440 people have spent a total of 27,082 crew days in space (crew-day, USA).

China's definition), the spacewalk shared 98 crew days.