Составить 5 предложений на английском языке о профессии космонавт

It is very difficult to be a cosmonaut. All cosmonauts should be very strong anddisciplined. It is also difficult because you spent a lot of time away fromfamily. The first cosmonaut in history was Yuri Alekseyevich Gagarin. He made his flight in1961 on the spaceship «Восток»