NASA astronaut and Expedition 72 Flight Engineer Butch Wilmore installs the Powered Ascent Utility Locker-2 (PAUL-2) in an EXPRESS rack aboard the International Space Station's Destiny laboratory module. PAUL-2 was launched aboard the SpaceX Dragon cargo spacecraft and can provide power and temeperature control for experiments packed inside Dragon during its trip to the orbital outpost. #nasa #astronaut #research #science #hardware #spacex #dragon #northropgrumman #cygnus #international #space #station