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A crew member participates in a session of extravehicular activity (EVA) for the NASA Extreme Environment Mission Operations (NEEMO) project. During today's EVA, astronaut/aquanauts Dafydd R. (Dave) Williams and Ronald J. Garan Jr. performed various tasks in a reconfigurable center of gravity backpack to simulate moon walking. The crew is spending 18 days, which began April 3, on an undersea mission aboard the National Oceanic and Atmospheric Administration's (NOAA) Aquarius Underwater Laboratory, located off the coast of Key Largo, Fla.
Surveying and mapping
NEEMO-9 astronaut/aquanaut Nicole P. Stott and University of Cincinnati physician Tim Broderick perform survey and mapping activities using a navigational device to record the coordinates of landmarks of interest within a 150-foot radius of Aquarius.