Apollo 11 lunar experiments, 1969.
© National Aeronautics & Space Administration / Science & Society
The Pasive Seismic Experiments Package (PSEP) shown here was one of the experiments that were carried out during the lunar landing misions. Apollo 11, the first manned lunar landing mision, was launched on 16th July 1969 with astronauts Neil Armstrong, Edwin 'Buzz' Aldrin and Michael Collins on board, and Armstrong and Aldrin became the first and second men to walk on the Moon on 20th July 1969. Collins, the Command Module pilot, remained in lunar orbit while Armstrong and Aldrin were on the surface.