The Civilian Shared Services Center awarded a purchase order to Duke University for $349,979 on February 17, 2026, for decompression sickness testing to support NASA's Aerospace Estimation Tool for Hypobaric Exposure Risk (AETHER) program. Work is performed at Duke's hypobaric chamber facility in Durham, North Carolina, and concludes February 17, 2027. The order requires hypobaric chamber tests with six subjects across three test conditions, including a 6-hour prebreathe protocol followed by 6-hour extravehicular activity simulations at 100% oxygen with integrated hardware, delivery of 2-D ultrasound and Doppler measurements, and electronic records within 14 days of each test. Duke must demonstrate prior completion of NASA-funded pilot and proficiency protocols and capability to conduct EVA simulations with eight rotating workstations. The procurement originated from solicitation 80NSSC26920179Q-1 (posted December 15, 2025; due January 29, 2026) and was awarded on a lowest-priced technically acceptable basis.