Hey Aaron, Supercomputers play an important role in the field of Computational Science, and are used for a wide range of computationally intensive tasks in various fields, including Quantum Mechanics, Weather Forecasting, Climate Research, Molecular Modelling (computing the structures and properties of chemical compounds, polymers, and crystals), and Physical Simulations (such as simulations of the early moments of the universe, airplane and spacecraft aerodynamics, the detonation of Nuclear weapons and Nuclear Fusion). They also plays an essential role in the field of Cryptanalysis.