What's Happening?
NASA is inviting the research community to submit input on practical methods for monitoring and managing astronauts' core body temperature during missions in low Earth orbit (LEO). The Human Research Program (HRP) is seeking validated approaches for measuring
core body temperature and thermoregulatory responses at rest, during routine operations, exercise, and during re-entry/landing. NASA is particularly interested in technologies viable for LEO and ideas for 24-hour monitoring. This request for information (RFI) is driven by emerging evidence suggesting that body temperature may run higher in microgravity and rise faster during exercise, potentially causing discomfort and overheating. The agency aims to better understand these physiological changes to safeguard crews during current International Space Station missions, future Artemis missions to the Moon, and operations on future commercial destinations in LEO. The RFI also requests methodologies for retrospective analyses of existing spaceflight datasets and recommendations for future thermoregulation research.
Why It's Important?
Accurate and continuous monitoring of astronaut core body temperature is crucial for ensuring crew health and safety during space missions. Elevated body temperatures in microgravity could lead to heat stress, reduced performance, and long-term health complications, impacting mission success and astronaut well-being. As NASA plans longer-duration missions to the Moon and beyond, understanding and mitigating these physiological challenges becomes even more critical. The input from the research community will help NASA develop improved models, protocols, and guidance for managing thermal regulation, which is essential for maintaining optimal crew health in extreme environments. This initiative also highlights the interdisciplinary nature of space exploration, requiring collaboration between space agencies, medical professionals, and technology developers to overcome complex physiological hurdles. The focus on practical, spaceflight-viable technologies underscores the need for innovative solutions that can withstand the unique demands of space travel.
What's Next?
The RFI is for information gathering purposes only and is not a funding solicitation. NASA will use the responses on a non-attributable basis for planning and acquisition strategy. The input received will guide work aligned with International Space Station missions and inform future studies and operations for Artemis missions and commercial destinations in low Earth orbit. Researchers are encouraged to consider analogs such as relevant patient populations, parabolic and suborbital flight, and bed rest in their recommendations. The deadline for submissions is October 14, 2026, at 2:00 p.m. CT. This ongoing research and development will contribute to the evolution of astronaut health protocols and the design of future spacecraft and habitats, ensuring that human exploration of space can be conducted safely and effectively.
Beyond the Headlines
The challenge of monitoring and managing astronaut body temperature in space extends beyond immediate health concerns, touching upon fundamental aspects of human adaptation to extreme environments. The subtle physiological changes observed in microgravity, such as altered thermoregulation, offer insights into the complex interplay between the human body and its environment. Understanding these mechanisms could have broader implications for terrestrial medicine, particularly in fields related to thermoregulation, exercise physiology, and critical care. The development of advanced, non-invasive, and continuous body temperature monitoring technologies for space could also find applications in healthcare on Earth, benefiting patients in remote areas, athletes, or individuals with chronic conditions. This NASA initiative underscores the symbiotic relationship between space exploration and scientific advancement, where challenges in one domain often lead to innovations with far-reaching benefits in others, pushing the boundaries of human knowledge and technological capability.
