NASA Names Astronaut Christina Koch as Acting Deputy Chief Engineer Following Katherine Van Hooser Retirement

According to NASA, astronaut Christina Koch has been named acting deputy chief engineer of the agency, stepping into the position following the retirement of Katherine Van Hooser after more than 35 years of dedicated service. This strategic leadership transition marks a significant moment for the agency as it blends decades of institutional engineering expertise with the extensive operational flight experience embodied by Koch. Van Hooser leaves behind an extraordinary legacy of technical excellence and leadership within NASA engineering circles, having guided numerous complex aerospace systems and mission architectures over her three-and-a-half-decade career. Her retirement creates large shoes to fill, but the selection of Koch signals a continued commitment to rigorous engineering standards and mission safety. Christina Koch is widely recognized around the globe for her historic contributions to human spaceflight, most notably her record-breaking extended stay aboard the International Space Station, where she spent 328 days in orbit and participated in the first all-female spacewalks. Beyond her achievements as a mission specialist and astronaut, Koch brings a robust technical background as an electrical engineer, having worked on scientific instruments for space physics missions prior to her selection as an astronaut candidate in 2013. Transitioning into the Office of the Chief Engineer allows her to apply her comprehensive firsthand understanding of spacecraft systems, human factors, and operational risk management to agency-wide engineering governance. In her new capacity as acting deputy chief engineer, Koch will help oversee the technical integrity, engineering policy, and safety standards for all of NASA portfolio of programs and projects, ranging from robotic science probes to Artemis human lunar exploration initiatives. The timing of the transition is carefully structured, with Van Hooser stepping down on October 21, and Koch officially assuming her new responsibilities starting November 1. This handover period ensures continuity of leadership as NASA navigates a complex era of commercial partnerships, deep-space exploration, and next-generation aeronautics research. Agency leadership has expressed immense gratitude for Van Hooser lifelong dedication to public service and the foundational technical frameworks she established during her tenure. At the same time, the appointment of Koch has been met with enthusiasm across the aerospace community, reflecting confidence in her ability to lead engineering oversight with the same dedication, precision, and pioneering spirit that defined her spaceflight career. As NASA prepares for upcoming milestones in human and robotic exploration, having a seasoned technical leader like Koch at the helm of engineering governance ensures the agency remains well-equipped to meet the rigorous demands of future space missions.