Thermolab sensor on Samantha

ESA astronaut Samantha Cristoforetti participated in the Circadian Rhythms experiment during her mission on the International Space Station in 2014–15. The sensor is a non-invasive thermometer worn on the forehead and on the sternum that continuously monitors core body temperature. Participating astronauts track temperature for 36-hour periods many times during their missions as well as before and after spaceflight.