Inside Building 7525, a processing facility at Vandenberg Space Force Base in California, the aft stub adapter is being prepared for mating to the interstage adapter for the United Launch Alliance Atlas V rocket on Nov. 4, 2020. The Atlas V will launch NASA’s Landsat 9 satellite from Vandenberg in September 2021. The launch is being managed by NASA’s Launch Services Program based at Kennedy Space Center. Landsat 9 will continue the nearly 50-year legacy of previous Landsat missions. It will monitor key natural and economic resources from orbit. Landsat 9 is managed by the agency’s Goddard Space Flight Center in Greenbelt, Maryland. It will carry two instruments: the Operational Land Imager 2, which collects images of Earth’s landscapes in visible, near-infrared and shortwave infrared light, and the Thermal Infrared Sensor 2, which measures the temperature of land surfaces. Like its predecessors, Landsat 9 is a joint mission between NASA and the U.S. Geological Survey.