Crew 2 deployed a geophone flute, provided by the Institut de Physique du Globe de Paris to produce three-dimensional maps of the subsurface. A similar instrument could one day be used on Mars to search for underground water or ice. Rock samples collected on Haynes Ridge during EVA were analyzed in the habitat's lab, and photographs were obtained of cyanobacteria found within them. The crew deployed cosmic ray dosimeters near Trinity Lake and Breccia Hill. The crew also completed questionnaires provided by the University of Quebec at Hull (UQAH) and NASA Johnson Space Center to aid human-factors research.
