June 8, 2011
Astronaut Franklin R. Chang-Diaz, STS-91 mission specialist, participates in an underwater simulation of a contingency space walk during a training session at the Johnson Space Center (JSC). Chang-Diaz is wearing a training version of the extravehicular mobility unit (EMU) space suit, weighted so as to achieve a neutrally buoyant state in the deep pool of JSC's Neutral Buoyancy Laboratory (NBL). The NBL is part of JSC's Sonny Carter Training Center.
Topics: Space, Human spaceflight, Space exploration, Neutral buoyancy, Neutral Buoyancy Laboratory, Space suit, Extravehicular Mobility Unit, Sonny Carter, Extra-vehicular activity, Lyndon B. Johnson Space Center