载人空间飞行国际日:探索历史上的载人航天事件
联合早报, 2021年4月12日 April 12, 1961, marked the day of humanity’s first successful flight into space. 60 years ago, Yuri Gagarin, a former Soviet astronaut, made a complete orbital flight around earth. Subsequently, there were many more milestones in space activities such as the first spacewalk, first human landing on the moon and the first female…