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1961年4月12日,前苏联空军上尉尤里·加加林身穿橙黄色飞行服,坐进一个由东方号运载火箭托举的球形密封舱中,从拜科努尔航天中心发射升空,在太空飞行108min绕地球一周后返回地面,开创了人类航天的新纪元。 由于这是人类向未知领域跨出的一大步,从总设计师科罗廖夫到宇航员加加林在起飞之前都不免有些担忧。科罗廖夫在发射场对加加林说:“你真幸运,你将从无与伦比的高处观看我们美丽的地球。但发射和飞行都不会轻松,要经受各种考验,包括那些未预料到的情况,飞行会有风险。”有人说,首次航天飞行的未知因素太多了,担心宇航员的身体和心理能否承受得起太空环境的影响,宇宙飞船能否保证宇航员可靠飞行和返回。
On April 12, 1961, former Soviet Air Force captain Yuri Gagarin, wearing an orange yellow flight suit, was seated in a spherical, airtight capsule lifted by the Astrodome launch rocket and launched from the Baikonur Space Center , Returned to the ground a week after the space flight 108min around the Earth, creating a new era of human spaceflight. Since this is a major step forward in the area of humankind’s unknowing, it is undeniable that chief engineer Korolev to astronaut Gagarin will take off before taking off. Korolyov at the launch site told Gagarin: “You are so lucky that you will see our beautiful Earth from an unparalleled height, but it will not be easy to launch or fly, and will undergo various tests, including those that have not been predicted There are risks to the flight. ”Some people say there are too many unknowns for the first time in space flight. They worry about whether the astronauts can physically and psychologically be able to withstand the space environment and whether the spacecraft can ensure the reliable flight of astronauts. return.