Space environment modeling is **space environment modeling is** the systematic process of developing theoretical, computational, or physical representations of the complex physical conditions and phenomena present in space. This research field involves the quantitative investigation and simulation of interactions between particles, electromagnetic fields, plasma, radiation, and neutral atmospheres across various scales within the solar system and beyond, often driven by stellar activity such as space weather. Characterized by the creation and validation of mathematical models and numerical simulations, its significance lies in enabling the understanding, prediction, and mitigation of the impacts of these dynamic environments on technological systems, human activities in space, and planetary bodies.