Apollo 11 was the first spaceflight to land humans on the Moon. On July 20, 1969, American astronauts Neil Armstrong and Buzz Aldrin stepped onto the lunar surface while their crewmate Michael Collins orbited above in the command module. Armstrong's first words as he stepped onto the Moon became famous: “That's one small step for man, one giant leap for mankind.”

The mission achieved President John F. Kennedy's goal, set in 1961, of landing Americans on the Moon before the decade ended. Getting to the Moon required solving thousands of problems: building a rocket powerful enough to escape Earth's gravity, creating spacesuits that could protect astronauts in the airless lunar environment, and developing computers to guide the spacecraft across 240,000 miles of space.

The Apollo 11 crew spent about 21 hours on the Moon's surface, collecting rock samples and conducting experiments before returning safely to Earth. The mission showed what humans could accomplish through determination, teamwork, and scientific innovation. Armstrong, Aldrin, and Collins became worldwide heroes, and the Moon landing remains one of humanity's greatest achievements. More than 600 million people around the world watched the landing on television, making it one of the most-watched events in history.