S66-27375 (19 Feb. 1966) --- Astronaut Eugene A. Cernan, pilot of the Gemini-9 spaceflight, has his suit adjusted by NASA suit technician Al Rochford during preparations for tests with the Astronaut Maneuvering Unit (AMU). The tests were conducted in Chamber B, Environmental Test Laboratory, Building 32. The AMU, which consists of a chest pack and backpack, will be used for extravehicular activity (EVA) on the Gemini-9 mission. Photo credit: NASA