Whose footprints are still on the Moon?

Neil Armstrong and Buzz Aldrin left the first human footprints on the Moon on July 20–21, 1969, during the Apollo 11 mission. Because the Moon has no atmosphere, no wind, and no liquid water, these footprints experience virtually no erosion. They could persist for over a million years, gradually degraded only by micrometeorite impacts and cosmic radiation. In total, 12 astronauts walked on the Moon across six Apollo missions (11, 12, 14, 15, 16, and 17) from 1969 to 1972, all leaving footprints that remain today. The last person to walk on the Moon was Eugene Cernan (Apollo 17, December 1972). The lunar regolith (soil) is fine and powdery — about 1 cm deep — and retains impressions extremely well because the angular dust grains lock together without moisture.