NASA's Shared Services Center awarded a purchase order to Faisal Karmali on October 1, 2025, for models of central spatial orientation vestibular-visual processing, with a ceiling value of $82,000 and a completion date of September 30, 2027. Work is performed in Belmont, Massachusetts. The procurement develops computational models simulating vestibular-visual processing for lunar landing astronauts, incorporating optimal estimation techniques based on sensory signal-to-noise ratios for moon landing scenarios. The order originated from a Special Notice presolicitation posted January 28, 2026, with a due date of February 2, 2026, issued under FAR Part 12 and Part 13 procedures; the procurement was classified as a sole source acquisition under NAICS 541330 (Engineering Services).