NASA's Launch Services Program, based at Kennedy Space Center, manages the acquisition and operation of expendable launch vehicles (ELVs) for various payloads, ensuring mission success through safe and cost-effective launches. The program oversees multiple launch sites and configurations, with a history of significant missions including Mars rovers and interplanetary spacecraft. It utilizes a variety of ELVs, including Delta, Atlas, Pegasus, and Taurus, to accomplish diverse scientific and exploratory objectives.