MilkyWay-2 is a large-scale astronomical simulation that models the formation and evolution of our galaxy, the Milky Way. It uses advanced computational techniques to simulate the interactions of stars, gas, and dark matter over billions of years, providing insights into the structure and dynamics of galaxies. The simulation helps researchers understand various phenomena, such as star formation, galaxy mergers, and the distribution of dark matter. By comparing the results of MilkyWay-2 with observational data, scientists can refine their theories about the history and future of the Milky Way and other galaxies in the universe.