EXPLORING DARK MATTER: THE INVISIBLE COMPONENT OF THE UNIVERSE

Abstract

Dark matter constitutes one of the most critical yet unresolved components of the universe, accounting for nearly 27% of its total mass-energy content, while remaining undetectable by electromagnetic means. This study presents a comprehensive, mixed-method investigation that integrates astrophysical observations, numerical simulations, and experimental results to explore the nature and behavior of dark matter. Data from galaxy rotation curves, gravitational lensing, and cosmic microwave background (CMB) anisotropies confirm the need for a non-luminous mass component that governs large-scale cosmic structure. N-body simulations aligned with the ΛCDM framework successfully reproduced the observed clustering and distribution of galactic halos, while highlighting persisting small-scale anomalies such as the core–cusp and missing satellite problems. Direct detection experiments, including results from LUX-ZEPLIN, XENONnT, and AMS-02, have progressively tightened exclusion limits on the mass and interaction cross-section of weakly interacting massive particles (WIMPs), though no conclusive detection has been achieved. Axion and sterile neutrino searches have yielded intriguing but statistically inconclusive results. Visualizations from the study, including power spectrum plots, heatmaps of dark matter density, and detection limit distributions, illustrate the multifaceted constraints and interactions shaping current theoretical models. The findings affirm the necessity of dark matter in explaining cosmological dynamics and support the predominance of the cold dark matter paradigm at large scales, while advocating for refined or extended models to resolve small-scale inconsistencies. This synthesis underscores the importance of cross-disciplinary collaboration between astrophysics, particle physics, and computational modeling in the continued pursuit to decode the dark sector of the universe.