From the very early period of civilization man had a dream to conquer the space. Many scientists, astronomers and mathematicians had worked over it. They observed and calculated the movements of the stars, plants and their orbits. Many attempts were made to build rockets to explore the sky. Dr. Goddard made researches for thirty years to make a rocket. During the Second World War Dr. Von Brawn made a
rocket accurately. America and Russia tried to make a safe landing on the moon. In 1961, Russia put Gagarin into space. America sent three astronauts to the moon in 1969. Armstrong and Aldrin landed on the moon for the first time. The conquest of the moon has inspired man to conquere Mars which in his next target.