iss052e058815 (8/18/2017) --- European Space Agency (ESA) astronaut Paolo Nespoli collects and processes saliva samples in the bioanalyzer for the ISS Non-invasive Sample Investigation and Results Transmission to ground with the Utmost easiness (In Situ). Crew on the International Space Station (ISS) are continually monitored for health changes, and as part of these measurements, they take saliva samples that are stored and returned to Earth later. The ISS Non-invasive Sample Investigation and results Transmission to ground with the Utmost easiness (IN SITU) bioanalysis is a portable device that can check crew members’ saliva on board, enabling direct real-time analysis. The device’s first uses are to monitor stress levels and appetites among crew members