These are the first words spoken by a Huriuman in space On 12 April 1961 Yuri Gagarin became the first human in space When he flew around the Earth in spacacraft called Vostok 1.He was only twenty-seven at the time. The spacecraft flew at a speed of over 2700 kilometresan hour,more rhan 300 kilometresan above the earth.the flight astad 108 minutes.