△1903年,“航天之父”——俄国人齐奥尔科夫斯基第一个提出了有关空间旅行的著名理论。△1957年10月4日,苏联成功地发射了第一颗人造地球卫星,开创了人类的空间时代。△1961年4月12日,苏联空军少校加加林第一次乘飞船绕地球飞行108分钟并安全返圆。这是人类第一次进入太空。△1962年3月18日,苏联宇航员列昂诺夫走出航天飞机座舱,进行了人类第一次空间漫步。△1969年7月16日,美国“阿波罗”号飞船载着3名宇航员在月球降落,这是人 In 1903, Ziyokovsky, the father of spaceflight, first proposed the famous theory of space travel. △ October 4, 1957, the Soviet Union successfully launched the first man-made earth satellite, creating a human space era. △ April 12, 1961, the Soviet Air Force Major Gagarin for the first time by spacecraft 108 minutes around the Earth and safely back to round. This is the first time humans have gone into space. △ March 18, 1962, the Soviet cosmonaut Leonov out of the space shuttle cockpit, carried out the first human space walk. △ July 16, 1969, the United States “Apollo” spacecraft carrying three astronauts landed on the moon, this is human