Stellar Science LTD. Co., Albuquerque, New Mexico, has been awarded a $7,999,654 cost-plus-fixed-fee contract for the development of end-to-end directed energy (DE) modeling and simulation (M&S) software, the application of end-to-end DE M&S software, and general development and support of the Galaxy Simulation Software Suite (GSSS). The work with the GSSS and underlying DE simulations will advance the state-of-the-art and scientific knowledge in DE technology, and increase knowledge of the physical processes affecting the high-fidelity simulation of directed energy devices which are applied in selected environments. Work will be performed at Kirtland Air Force Base, New Mexico, and is expected to be completed June 2027. This award is the result of a competitive acquisition, and one offer was received. Fiscal 2022 research, development, test and evaluation funds in the amount of $400,000 will be obligated at the time of award. Air Force Research Laboratory, Kirtland AFB, New Mexico, is the contracting activity (FA9451-22-C-0001).