2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/1258The nature of Galactic Center could be probed by lensing experiments capable of testing the spatial and velocity distributions of stars nearby and beyond it. Several hypotheses are possible (e.g. massive neutrino condensation, boson star) which avoid the shortcomings of the supermassive black hole model.4 pages, XXXV Rencontres de Moriond on Cosmological Physics with gravitational lensing, Les Arcs, on March 11-18 2000Astrophysicstext