Biometric patch in use on the ISS. Wearable sensor on an astronaut's arm during a space mission on the International Space Station (ISS). The sensor is connected to an ISS iPad via bluetooth or via Lightbolt connector. This EVERYWEAR application allows a unified interface for physiology-related data collection and wireless communication during space missions. Photographed by ESA astronaut Thomas Pesquet on 8 December 2016, during Expedition 50 to the ISS.