Imaging X-ray Polarimetry Explorer (IXPE)

National Aeronautics and Space Administration (NASA)/George C. Marshall Space Flight Center (MSFC) has a requirement for continued support for the Imaging X-ray Polarimetry Explorer (IXPE) Mission. As a result of the 2025 Astrophysics Senior Review of Operating Missions,  NASA Science Mission Directorate Astrophysics Division has provided budgetary guidance to MSFC to extend the IXPE mission and Phase E science operation contracts through FY28. The review of operating missions is NASA’s highest form of peer review, as the subject is not a single science investigation, or even a single space mission, but rather a portfolio of operating missions.