从1961年4月12日(加加林上天)到1992年4月12日,全世界共有269位宇航员进入太空,其中美国169位(不包括1992年5月7日登天的7名),原苏联72位,其他国家29位。后者来自于21个国家,他们分别与美苏进行了联合空间飞行。长期以来,美国航宇局严格限制让国外宇航员参加其载人航天活动,只是在同欧空局联合研制空间实验室后,才向欧空局开放载人航天 From April 12, 1961 (God of Gagarin) to April 12, 1992, a total of 269 astronauts entered space around the world, of which 169 in the United States (excluding the seven who ascend the ground on May 7, 1992) 72 in the former Soviet Union and 29 in other countries. The latter came from 21 countries, who respectively conducted joint space flights with the United States and the Soviet Union. For a long time, the United States NASA strictly restricted the participation of foreign astronauts in its manned space activities. Only after the space laboratory was jointly developed with ESA, was NASA open to manned space flight