Relatividade Geral - Albert Einstein

Mass can be understood as a concentrated form of energy, as indicated by the relation (E = mc²). In General Relativity, proposed by Albert Einstein, this concentration of energy not only "occupies space," but modifies the very structure of spacetime around it. The greater the mass, the greater the curvature generated, and it is this distortion that we perceive as gravity, influencing the movement of planets, stars, and even light.