2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/7896This is a new review article for The Review of Particle Physics 2004 (aka the Particle Data Book). It forms a compact review of knowledge of the cosmological parameters as at the end of 2003. Topics included are Parametrizing the Universe; Extensions to the standard model; Probes; Bringing observations together; Outlook for the future.27 pages TeX file with four figures incorporated. Article for The Review of Particle Physics 2004, published version at http://pdg.lbl.gov/2004/reviews/contents_sports.htmlAstrophysicstext