S95-15847 (26 July 1995) --- Wearing a training version of the Extravehicular Mobility Unit (EMU) space suit, astronaut Mario Runco Jr., mission specialist, prepares to participate in an underwater rehearsal of a contingency Extravehicular Activity (EVA). This type of training routinely takes place in the 25-feet deep pool of the Johnson Space Center's (JSC) Weightless Environment Training Center (WET-F). The training prepares at least two crew members on each flight for procedures to follow outside the spacecraft in event of failure of remote methods to perform various chores.