Abstract

Einstein's accurate predictions created a faith that makes a critical analysis of general relativity over due. Since his field equation has no dynamic solutions, the observational confirmations have been exaggerated. Einstein's covariance principle has been proven to be invalid. This error comes from Einstein's theory of measurement that adapts the mathematical notion of distance in Riemanian geometry as if valid in physics, and his supporting arguments are actually based on invalid applications of special relativity. However, such a theory of measurement was not used in Einstein's predictions. Nevertheless, Einstein's equivalence principle plays a crucial role in rectifying the shortcomings of his theory, and the Maxwell-Newton Approximation is proven as independently valid for massive sources. Then, general relativity leads to the discovery of the charge-mass interaction that would explain the space-probe pioneer anomaly discovered by NASA. Thus, unification of gravitation and electromagnetism is proven necessary. Moreover, since the photons must include gravitational energy, particle physics would not be clearly understood without gravity.