已有584人前往太空,其中24人在月球上行走. 584 humans have traveled to space, with 24 walking on the moon.

太空探索的里程碑:已有584人前往太空,其中24人曾在月球上行走. Space exploration milestones: 584 humans have traveled to space, with 24 walking on the moon. 美国已经发射了381名宇航员, 其中包括12位月球行者. The U.S. has launched 381 astronauts, including 12 moonwalkers. 苏联提供了90名宇航员,其他国家则派出13人. The Soviet Union contributed 90 cosmonauts, and other nations have sent 13. 苏联宇航员尤里·加加林是第一个进入太空的人, 其次是美国人艾伦·谢帕德. The first person in space was Yuri Gagarin, a Soviet cosmonaut, followed by American Alan Shepard.