Measurement of Core Temperature and Thermoregulatory Responses during and after Spaceflight in Astronauts

NASA’s Johnson Space Center is issuing an RFI to gather technical information on how to reliably measure core body temperature and thermoregulatory responses in astronauts before, during, and after spaceflight. The agency seeks validated methods, technology status, and future study recommendations, emphasizing non‑invasive approaches and data analysis of existing datasets. This is an informational, sources‑sought notice with no commitment to award or funding at this stage. • Required information includes validated surveillance/quantification methods for core temperature across all mission phases, with rationale, methodology, and technology readiness. • Requests recommendations for short‑ and long‑duration missions, including analog environments and potential application to future LEO, commercial, and Artemis missions. • Submissions must be emailed to the primary and secondary contacts and reference the RFI number; no proprietary or restricted data is to be submitted.