الانسان فى الفضاء غزو الفضاء

You will learn - dear reader - about the conquest of space through this series on human journeys to outer justice, as this series traces the path of spaceflight for nearly a century, beginning with the first astronauts' flights that were launched in the 1960s and As for the trips that are expected to take place in the future. Astronomy is still one of the vast sciences in which work is progressing in full swing to explore its depths and discover all its secrets. The book in your hands tells how the invention of the first types of rockets facilitated the practical flight in outer space, because the thickness of the atmosphere decreases as the altitude increases from the surface of the earth. Keep in mind that you will become an astronaut if you fly to an altitude of more than 100 km (62 miles).