NASA astronaut and Expedition 58 Flight Engineer Anne McClain is pictured inside the vestibule between the Harmony module and the Destiny laboratory module.
iss058e008016 (Jan. 30, 2019) — NASA astronaut and Expedition 58 Flight Engineer Anne McClain is pictured inside the vestibule between the Harmony module and the Destiny laboratory module. She is wearing a sensor on her forehead that is collecting data for the Circadian Rhythms experiment researching how an astronaut’s “biological clock” changes during long-duration spaceflight.