55 years ago, man first set foot on the Moon On the evening of July 20, 1969, the Apollo 11 descent module with two American astronauts on board, Neil Armstrong and Buzz Aldrin, made the first soft landing in history on the surface of the Earth's natural satellite. Six hours later, on July 21 at 5:56 a.m. Moscow time, Armstrong made his historic "one small step for man, one giant leap for mankind." The Apollo 11 mission launched from Cape Kennedy on July 16, 1969, with the main goal of successfully landing on the Moon and returning home. Completing this task marked a new stage in human exploration of space. Apollo 11 entered Earth orbit at an altitude of 183.2 to 185.9 kilometers twelve minutes after launch. After completing one and a half orbits, the astronauts fired the third stage engine, which sent the spacecraft on a trajectory to the Moon. Thirty minutes later, the third and final stage of the Saturn V rocket separated, after which the command and lunar modules, which had been flying separately until then, docked. On the evening of July 19, Apollo 11 passed behind the far side of the Moon and fired its engines to enter lunar orbit. During the next thirty orbits around the Moon, the crew carefully studied the intended landing site. Finally, on July 20, 1969, the lunar module Eagle separated from the command module Columbia and began its descent. Collins, who remained on board Columbia, carefully inspected the lunar module from the side to make sure there was no damage. Armstrong and Aldrin began landing 4 seconds ahead of schedule; Thus, the landing site was shifted kilometers to the west, which could pose a danger to the astronauts. Five minutes later, when the lunar module was at an altitude of 1800 meters from the surface of the Moon, the on-board computer issued errors "1201" and "1202". This meant that the clock frequency was not enough to perform all the necessary calculations in real time. Armstrong had to take control into his own hands, while Aldrin read out the instrument readings aloud. On July 20 at https://www.youtube.com/...ity//yt3.ggpht.com/...-v1