Astrophysical simulations are computer simulations used by astrophysicists to model and study various phenomena in the universe, such as the formation and evolution of galaxies, stars, and planets. These simulations typically involve complex mathematical models that take into account factors such as gravity, gas dynamics, radiation, and magnetic fields. By running these simulations, researchers can better understand the underlying physical processes at work in the universe, test theoretical models, and make predictions about observable phenomena. Astrophysical simulations have been instrumental in advancing our understanding of the universe and have led to numerous scientific discoveries. Some common types of astrophysical simulations include cosmological simulations, which model the large-scale structure and evolution of the universe, and hydrodynamical simulations, which simulate the behavior of gas and fluids in astrophysical environments. These simulations are often run on supercomputers due to their computational intensity and complexity.