On July 20, 1969, the United States achieved a significant milestone in space exploration when the Apollo 11 mission successfully landed astronauts on the Moon. The lunar module, named Eagle, touched down in the Sea of Tranquility, marking the first time humans set foot on another celestial body. Astronauts Neil Armstrong and Buzz Aldrin exited the lunar module, with Armstrong famously declaring, "That's one small step for [a] man, one giant leap for mankind," as he became the first person to walk on the Moon. The mission was a pivotal moment in the Space Race between the United States and the Soviet Union.