Abstract: A recalculation of Kepler’s third law with recent data of planets offers a violation of the Universality of Free Fall in order of 1.5 ⋅ 10-3. Therefore, the equality of the inertial and gravitational mass and the UFF must be invalid basic hypotheses. A revision is appropriate on the fundaments of the physical description.
PACS: 02.40.-k, 04.20.Cv, 04.30.-w