The contract extends the agreement between NASA and SAO through September 30, 2024, followed by two three-year options that would extend the contract through September 30, 2030. The total potential value of the contract extension is $563.5 million. This contract covers the continued operation of the Chandra X-ray Center (CXC) in Cambridge, which conducts key aspects of Chandra’s observation, operations, and research program. Core functions of the CXC include system engineering, ground system development and maintenance, mission operations, science, and operations planning, science research and dissemination, and outreach support. Since its launch on July 23, 1999, Chandra has been NASA’s flagship mission for X-ray astronomy and is among NASA’s fleet of Great Observatories. The agency’s Marshall Space Flight Center in Huntsville, Alabama, manages the Chandra program for the agency’s Science Mission Directorate in Washington.