Apollo 15 spacewalk in August 1971, illustration. The Apollo 15 mission to the Moon took place from 26 July to 7 August 1971. Here, two astronauts are performing a spacewalk on the exterior of the Command and Service Module (CSM) as it returned from the Moon. This extravehicular activity (EVA), which took place on 5 August 1971, was a new addition to the tasks for the Apollo missions. The figure at left represents astronaut Alfred M. Worden, command module pilot, connected by an umbilical tether to the spacecraft. At right is a figure representing astronaut James B. Irwin, lunar module pilot, standing at the open hatch. Worden is working with the panoramic camera in the Scientific Instrument Module (SIM). Behind Irwin is the 16mm data acquisition camera. Artwork published in July 1971.