When was the oscillating universe theory

Aldering, G. Goldhaber, R. Knop, P. Nugent, P. Castro, S. Deustua, S. Fabro, A. Goobar, I. Hook, M. Kim, J. Lee, N. Nunes, R. Pain, C. Pennypacker and R. Bejamin, New York, Amsterdam, Lukash and V. Home Journals Article. Evgeny V. DOI: Abstract This paper represents model of oscillating universe theory. Share and Cite:. Conflicts of Interest The authors declare no conflicts of interest. A modification of the Big Bang theory, in which an expanding universe eventually reverses and collapses back to a Big Crunch before starting to expand again, forming one cycle of an endless series.

In such a model, each cycle has a finite duration but the universe itself can last for an infinite time. It is not known whether our Universe is of this type, or whether it will expand for ever. See also Closed Universe; Open Universe.

From: oscillating universe in A Dictionary of Astronomy ». Subjects: Science and technology — Astronomy and Cosmology. View all related items in Oxford Reference ».

Search for: 'oscillating universe' in Oxford Reference ». All Rights Reserved. For this author, it would be a unique and self-sufficient universe. An oscillating universe theory starts from the premise that the universe is closed with a radius of curvature that will also oscillate.

It also means that the current universe may be the first of a possible series of universes. It could also be one more or the number N Of the series. Although Friedmann developed the mathematical model, it was this physicochemical who made the whole approach of the oscillating universe for the first time in He spoke of the theory indicating that the big explosion gave rise to stars and galaxies and that the expansion that occurred after the Big Bang has been losing speed.

That is, if you compare the speed of expansion of a few years back with that which can be observed today, you would notice a considerable decrease in speed. For Gamow, this fact suggests that the expansion of the cosmos will become slower and slower until it reaches a point where it no longer occurs, but rather shrinks into another"cosmic egg. Although accepted by cosmologists for some time, oscillating universe theory ceased to be popular since , due to several contradictions or inconsistencies that began to reveal scientists.

In fact, in the s, Stephen Hawking and Roger Penrose proved that the universe could not rebound after a contraction, as suggested by oscillating universe theory. Some of these criticisms are related to the weak explanation of why this rebound would occur and the incompatibility with the second law of thermodynamics according to which, the entropy would rise in each oscillation so that it could not be returned to the initial conditions.

Some scientists believe that in order for an oscillating universe to be possible, everything should be restarted with the Big Crunch, including physical laws.