Antarctic study finds frequent contact increased tension in isolated crews

Researchers from the University of Zurich and the University of Bern tracked 12 crew members during a ten-month overwintering mission at Concordia Station in Antarctica, where winter temperatures reach minus 80 degrees Celsius. The station's extreme isolation and confinement make it a widely used analog for future long-duration missions to the Moon or Mars.

Participants completed questionnaires at four intervals and wore wearable sensors that recorded physical proximity and duration of encounters with other crew members. Combining these data streams allowed the team to monitor changes in loneliness, trust, conflict, social relationships, team cohesion, and perceived performance across the mission.

The analysis found that crew members who spent more time near others reported higher levels of conflict, greater mistrust, and lower perceived performance. The researchers caution that the results show correlations, not causation; for example, individuals feeling lonely may have sought more interaction without receiving the support they needed.

Sensor data also revealed that the crew gradually separated into smaller subgroups based on shared language or nationality as the mission progressed. These subgroups may provide a sense of grounding during stress, but they can also weaken unity in culturally diverse teams.

The findings highlight the importance of identifying social dynamics early and offering targeted support for crews on extended space missions, where privacy is minimal and outside communication is limited. The results may also apply to other isolated, confined environments such as submarines, offshore platforms, and remote research stations.

The study demonstrated that wearable proximity sensors can operate reliably in harsh conditions, enabling unobtrusive monitoring of everyday social patterns. Future research will examine which types of interaction relieve stress and which may add to it.