"List of astronauts by year of selection"@en . . . . "This is a list of astronauts by year of selection, people selected for training for a human spaceflight program to command, pilot, or serve as a crew member of a spacecraft. Until recently, astronauts were sponsored and trained exclusively by governments, either by the military or by civilian space agencies. However, with the first sub-orbital flight of the privately funded SpaceShipOne in 2004, a new category of astronaut was created \u2013 the commercial astronaut. While the term astronaut is sometimes applied to anyone who travels into space, including scientists, politicians, journalists, and tourists, this article only lists professional astronauts. A list of everyone who has flown in space can be found at List of space travelers by name. More than 500 people have trained as astronauts."@en . . . . . . . "This is a list of astronauts by year of selection, people selected for training for a human spaceflight program to command, pilot, or serve as a crew member of a spacecraft. Until recently, astronauts were sponsored and trained exclusively by governments, either by the military or by civilian space agencies. However, with the first sub-orbital flight of the privately funded SpaceShipOne in 2004, a new category of astronaut was created \u2013 the commercial astronaut. More than 500 people have trained as astronauts."@en . .