The Apollo missions were a series of manned spaceflights conducted by NASA during the 1960s and 1970s with the goal of landing humans on the Moon and returning them safely to Earth. The missions were a part of the larger Apollo program, which aimed to achieve President John F. Kennedy's goal of landing a man on the Moon before the end of the 1960s. The Apollo missions consisted of 17 flights in total, with six of them successfully landing astronauts on the Moon between 1969 and 1972. The most famous of these missions was Apollo 11, which successfully landed astronauts Neil Armstrong and Buzz Aldrin on the lunar surface on July 20, 1969, and Armstrong famously became the first human to walk on the Moon. The Apollo missions not only achieved the goal of landing humans on the Moon but also made significant scientific discoveries and advancements in space exploration technology. The missions brought back valuable lunar samples, conducted experiments on the Moon's surface, and provided valuable insights into the Earth and its place in the universe.