Ultimate fate of the universe: Difference between revisions

The fate of the universe may be determined by its density. The preponderance of evidence to date, based on measurements of the rate of expansion and the mass density, favors a universe that will continue to expand indefinitely, resulting in the "Big Freeze" scenario below.<ref>{{Cite web |title=WMAP – Fate of the Universe |url=https://map.gsfc.nasa.gov/universe/uni_fate.html |access-date=2023-06-15 |website=map.gsfc.nasa.gov}}</ref> However, observations are not conclusive, and alternative models are still possible.<ref>{{Cite journal |arxiv = 0910.0834|bibcode = 2009IJMPD..18.2231L|title = The Return of the Phoenix Universe|journal = International Journal of Modern Physics D|volume = 18|issue = 14|pages = 2231–2235|last1 = Lehners|first1 = Jean-Luc|last2 = Steinhardt|first2 = Paul J.|last3 = Turok|first3 = Neil|year = 2009|doi = 10.1142/S0218271809015977|s2cid = 119257111}}</ref>{{Obsolete source}}