Buzz Aldrin from the Psalms comes to mind to me. 'When I consider the heavens, the work of thy fingers, the moon and the stars which thou hast ordained, what is man that thou art mindful of him?'". Preparations for the EVA began at 23:43. Once Armstrong and Aldrin were ready to go outside, "Eagle" was depressurized, and the hatch was opened at 02:39:33 on 21 July. Aldrin set foot on the Moon at 03:15:16 on July 21, 1969 (UTC), nine minutes after Armstrong first touched the surface. Armstrong and Aldrin became the first and second people, respectively, to walk on the
Neutral buoyancy simulation as a training aid post-mission evaluation of problems that he encountered during his Gemini IX-A EVA. NASA then modified the contract to include pre-mission training of Gemini XII astronaut, Buzz Aldrin. Astronaut Cernan also participated in this pre-mission training, as he was in a backup role to Aldrin as pilot of Gemini XII. Aldrin trained for the original Gemini XII EVA version which was then revised to eliminate the task of using a manned maneuvering unit. Aldrin returned to the McDonogh facility and trained for the final version of his EVA. NASA considered the flight EVA to be a total success, and Aldrin again