eng Science and Education Publishing International Journal of Physics 2333-4576 2020-09-07 8 3 114 119 10.12691/ijp-8-3-5 IJP2020835 article Jos¨¦ Lu¨ªs Pereira Rebelo Fernandes rebelofernandes@sapo.pt 1 Engineer, University of Porto Now we know that the constant Moon removal of 3.82+-0.07 ¡°(Nasa information)¡± cm, per year, from the Earth has a measurement error due to the variation of time to the expansion of the Universe. We already know that time varies in the inverse proportion of the square root of Universal Density of Potential Energy in time ¡°Ref. [1]¡±, and we also know that the gravitational radius increases because G increases and this increases in the reverse proportion of density of potential energy in time. With this information we will be able to calculate the true value of the removal of the Moon from Earth and thus calculate how many years it took for the Moon to be at a distance that is now. http://pubs.sciepub.com/ijp/8/3/5/ijp-8-3-5.pdf universe gravitation potential gravity velocity mass physics variable