2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/7016The main task for cosmology today is the completion of the program of cosmological tests that commenced in the 1930s. I offer comments on the state of the program and the issues to be addressed to establish a convincing large-scale picture of the observable universe.Contribution to TAUP 2003, Seattle, September, 2003; five pagesAstrophysicsOpen Problems in Cosmologytext