Neil Armstrong, 1969. Aldrin in his EVA suit on Tranquility Base; Armstrong reflected in his visor.
From Wikipedia
Buzz Aldrin is an American former astronaut, aeronautical engineer, and fighter pilot. He was the second person to walk on the Moon after mission commander Neil Armstrong. He made three spacewalks as pilot of the 1966 Gemini 12 mission, and was the Lunar Module Eagle pilot on the 1969 Apollo 11 mission. Following the deaths of Armstrong in 2012 and pilot Michael Collins in 2021, he is the last surviving Apollo 11 crew member. Following Jim Lovell's death in 2025, Aldrin became the oldest living astronaut.