Stock Photo - (22 april 1969) --- astronaut edwin e. aldrin jr., wearing an extravehicular mobility unit (emu), simulates deploying the solar wind composition (swc) experiment, on the surface of the moon, during a training exercise in building 9 on april 22, 1969. the swc is a component of the early apollo scientific experiment package (easep). aldrin is the lunar module pilot of the apollo 11 lunar landing mission. Apollo 11 mission, first landing on the moon, july 1969, with astronauts neil armstrong, edwin aldrin, and michael collins. these images tell the story of the apollo 11 project, from conception to the realization of the first human step on the moon on july 21, 1969.