The correct answer to this open question is the following.
I would like to refer to the history of the space race that originated during the Cold War years in which the Soviet Union and the United States competed in this industry as well as the arms race. The evolution of space engineers in those years was difficult. The United States had so much pressure after the Soviets launched the Sputnik spacecraft in orbit. Presidente John F. Kennedy really impulsed the space industry and demanded results. Years passed and NASA became one of the most important or the most important space agencies in the world and developed great programs such as the Apollo missions and in the 1980s, the Challenger missions. One of the difficulties of today, compared with the engineers of the past is that is so much competence because today, not only is Russia and the US in the international scene. Countries like China, India have developed interesting space programs. And also, today there are companies like Virgin Space that are entered into the space travel business.