Mastracchio poses with DIAPASON in the U.S. Laboratory

iss038e001780 (11/14/2013) --- A view of NASA astronaut Rick Mastracchio, posing with DIAPASON, in the U.S. Laboratory aboard the International Space Station(ISS). The DIAPASON conducts high-accuracy environmental control,pollution monitoring and particle recording with a simple instrument that captures nanoparticles.