Interests of a new lunar laser instrumentation on the ESO NTT Telescope

We analyze the impact of the installation of a lunar laser ranging device on the NTT 3.6m ESO telescope. With such an instrument, the scientific communities of fundamental physics and solar system formation will highly benefit of the only LLR station in the Southern Hemisphere. The quality of the NTT 3.6 meter telescope will also greatly complement the LLR 3.5 meter Apache Point telescope (3.5 m) instrument in the Northern Hemisphere (USA) which is the best instrument for tracking the Moon since 2006. Finally, we also consider the technical characteristics of such installation including the observational constraints. 1 Scientific rational: open questions addressed to Lunar Laser tech-nology 1.1 Dark Matter and dark energy in the solar system and beyond The year 2015 will mark the 100th anniversary of General Relativity Theory (GRT). Up to now, GRT successfully described all available observations and no clear observational evidence against General Relativity was identified. However, the discovery of Dark Energy that challenges GRT as a complete model for the macroscopic universe and the continuing failure to merge GRT and quantu