Earth rising above the cratered lunar surface during the Apollo 8 mission, dated December 24, 1968.

Pioneering Nursing-Led Space Health and Human Performance

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Advancing Human Exploration and Building Expertise

Scuba Diving as a Spaceflight Analog Environment Scuba diving provides a valuable spaceflight analog by utilizing neutral buoyancy to simulate aspects of weightlessness and investigate human performance in microgravity-like conditions. Underwater immersion allows researchers to evaluate spatial disorientation, altered proprioception, movement coordination, task performance, and equipment handling relevant to extravehicular activities (EVAs) and astronaut operations. Hydrostatic pressure and immersion-induced fluid shifts also provide opportunities to examine cardiovascular responses, changes in central blood volume, and physiological adaptations relevant to spaceflight-associated fluid redistribution. Additionally, exposure to increased ambient pressure supports research into respiratory physiology, gas exchange, and decompression risks applicable to spacesuit operations and EVA safety. Although underwater environments do not replicate the physiological effects of true microgravity, scuba diving offers a controlled analog for studying human-system interactions, operational performance, and selected physiological challenges associated with space exploration. View additional information

Our nurses gain firsthand experience in operational and spaceflight analog environments, developing a deeper understanding of the physiological effects of gravitational forces, altered gravity, and simulated microgravity on the human body. These immersive experiences inform research, advance clinical expertise, and support the development of evidence-based nursing practices for human health and performance in space. The diverse expertise gained through these endeavors contributes to the collective knowledge, interdisciplinary perspective, and research capabilities of the Consortium.

*These experiences have been independently pursued by our nursing professionals through their individual research, training, and professional development activities, separate from the Space Medicine Nursing Research Consortium (SMNRC).

Aerobatic Flight as a Spaceflight Analog Environment Aerobatic flight provides a dynamic analog environment for experiencing and studying the physiological and cognitive effects of acceleration forces (G-forces) on the human body. Through controlled flight maneuvers, participants experience variations in gravitational loading, including positive and negative G-forces, offering firsthand insight into the challenges encountered during spacecraft launch, reentry, and other high-acceleration operations. Exposure to increased positive G-forces causes blood to shift toward the lower extremities, reducing blood flow to the brain and potentially producing visual disturbances, diminished cognitive performance, and G-induced loss of consciousness (G-LOC). Negative G-forces redistribute blood toward the head, producing different cardiovascular and neurological responses. Rapid changes in acceleration and aircraft orientation can also challenge vestibular function, spatial orientation, situational awareness, and decision-making. For space medicine nursing, these experiences provide valuable opportunities to connect physiological knowledge with operational demands. Understanding the body's responses to altered gravitational loading informs astronaut health monitoring, cardiovascular risk assessment, recognition of acceleration-related impairment, and the development of preventive measures and emergency response protocols. By integrating direct exposure to aerospace environments with clinical expertise and human factors principles, space nurses can contribute to the design of safer spacecraft systems, individualized health and performance countermeasures, and evidence-based medical support throughout all phases of spaceflight. Although aerobatic aircraft cannot reproduce the sustained microgravity of orbital flight, they offer a valuable operational analog for understanding acceleration-related physiological stress and strengthening the role of nursing in protecting human health, safety, and performance during space exploration.

*Click either photograph to learn more about these spaceflight analog environments.*

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Our research demonstrates a continual commitment to evidence-based healthcare that prioritizes safety and health during long-duration space exploration.

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Christine Rincon presenting nursing roles in telemedicine triage for spaceflight analogs at the Aerospace Medical Association Scientific Meeting

Nursing Roles in Telemedicine Triage for Spaceflight Analogs Presented by Christine Rincon, MSN, APRN, PMHNP-BC, at the 95th Aerospace Medical Association (AsMA) Scientific Meeting in Denver, this presentation introduces a specialized educational course designed to prepare nurses for the unique operational demands of spaceflight analog environments. The curriculum emphasizes the critical transition from traditional, reactive bedside nursing to the proactive, systems-oriented decision-making required of aerospace flight controllers. By comparing the preparation of terrestrial virtual nurses (CAVRNs) with the operational responsibilities of Biomedical Engineers (BMEs) in mission control, the course bridges conventional clinical practice with the principles of spaceflight telemedicine and remote medical operations. Participants develop competencies in monitoring habitat life-support systems, recognizing evolving physiological and environmental risks, anticipating emergencies before automated alarms activate, and making autonomous, safety-critical decisions when immediate external medical support may be unavailable. These skills are evaluated through simulation-based exercises using the SIMOC habitat simulator, allowing nurses to integrate clinical judgment with environmental monitoring, operational risk assessment, and mission-support decision-making. This educational approach demonstrates how cross-trained nurses can contribute to terrestrial spaceflight analog missions while supporting the development of more comprehensive nursing roles within future space medicine and exploration healthcare systems.

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Two people pose beside a white astronaut spacesuit in a space training facility.

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Pioneering Nursing-Led Space Health and Human Performance

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