# #Mon Aug 09 12:01:41 CEST 2010 Text___XBfcKOcEd-WfYQ0GneCwQ_text=One of the basic predictions of that standard model of cosmology is that the universe is expanding permanently after the initial explosion. The primordial universe was much hotter and denser than the universe is today. Due to the high temperature, matter could not clump together to form structures in form of atoms or atomic nuclei. Text___XBfcKOcEd-WfYQ0GneCwQ_title=The Cosmological Timeline