A Tidy Physics Engine for Building and Visualizing Orbital Simulations // A lightweight, fully vectorized N-body physics engine built for the R ecosystem. Simulate and visualize complex orbital mechanics, celestial trajectories, and gravitational interactions using tidy data principles. Features multiple numerical integration methods, including the energy- conserving velocity Verlet algorithm (Verlet (1967) doi:10.1103/PhysRev.159.98), to ensure highly stable orbital propagation. Gravitational N-body methods follow Aarseth (2003, ISBN:0-521-43272-3).