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A cosmological phase transition is an overall change in the state of matter across the whole universe. The success of the Big Bang model led researchers to conjecture possible cosmological phase transitions taking place in the very early universe, at a time when it was much hotter and denser than today.
Arizona State University (Arizona State or ASU) is a public research university [8] in Tempe, Arizona, United States. [9] Founded in 1885 as Territorial Normal School by the 13th Arizona Territorial Legislature, the university is one of the largest public universities by enrollment in the United States. [10]
A sample of 229 nearby "thick" disk stars has been used to investigate the existence of an age-metallicity relation in the Galactic thick disk and indicates that there is an age-metallicity relation present in the thick disk. [13] [14] Stellar ages from asteroseismology confirm the lack of any strong age-metallicity relation in the Galactic ...
Evolution of a University [permanent dead link ], a series on ASU's history and future plans printed in The State Press from Nov. 4–6, 2008 50 years ago, voters endorse name change for Arizona State; Longtime employees look back at past 50 years’ ASU presidents; Crow’s vision attracts both praise, criticism
Observational cosmology – Study of the origin of the universe (structure and evolution) Observation history of galaxies – Large gravitationally bound system of stars and interstellar matter; Physical cosmology – Branch of cosmology which studies mathematical models of the universe; Timeline of cosmological theories
Without major changes to the Big Bang theory itself, BBN will result in mass abundances of about 75% of hydrogen-1, about 25% helium-4, about 0.01% of deuterium and helium-3, trace amounts (on the order of 10 −10) of lithium, and negligible heavier elements. That the observed abundances in the universe are generally consistent with these ...
In cosmology, the steady-state model or steady-state theory is an alternative to the Big Bang theory. In the steady-state model, the density of matter in the expanding universe remains unchanged due to a continuous creation of matter, thus adhering to the perfect cosmological principle , a principle that says that the observable universe is ...
Physical cosmology – origin and evolution of the universe as a whole. The study of cosmology is theoretical astrophysics at its largest scale. Quantum cosmology - the study of cosmology through the use of quantum field theory to explain phenomena general relativity cannot due to limitations in its framework.