Reclassifying Universal Cosmology: The Observational Refutation of Dark Matter and Dark Energy after Almost a Century of Uncertainties

This paper presents a unified interpretation of cosmic structure based exclusively on classical gravitation, General Relativity, and observational astrophysics, in which the socalled dark sector is entirely reinterpreted as real baryonic matter. The central point is the introduction of two formal concepts, Baryonic Obscurus and Cosmos Tenebris, and a simple, dynamic mathematical formalism that reclassifies all inferred gravitational mass as the sum of visible and obscured baryonic components. The text begins with a historical overview, from Aristotle and Ptolemy to the heliocentrism of Copernicus, Kepler, and Galileo, through Newton and Einstein, establishing the conceptual basis for a vectorial reading of the universe after the Big Bang. Next, we describe the early emergence of supermassive black holes, quasars, high-rate supernovae, and large-scale structures such as Laniakea, the Great Attractor, and Shapley, emphasizing that all known cosmic development is governed by real mass, momentum, vectors, and gravitational hierarchies.