page_title: Cosmogony
section_title: Scientific theories
hierarchical_section_title: Cosmogony / Overview / Scientific theories
caption_attribution_description: English: This image is a somewhat fair reconstruction of an image of the Calabi–Yau manifold that appears as a figure in the paper: Leonard Susskind&#32;(November 2003).&#32;"Superstrings (Features: November 2003)". Physics World&#32;16&#32;(11). Retrieved on 2007-07-24. I created this image myself to replace File:Calabi-Yau.jpeg (an illicit copy of the original). To recreate the image's likeness without copying the image, I used the description on the home page of Prof. Andrew Hanson of the computer science department at the University of Indiana, and the procedure he provides in the paper: A.J. Hanson&#32;(November/December 1994).&#32;"A construction for computer visualization of certain complex curves". Notices of the Amer.Math.Soc.&#32;41&#32;(9): 1156-1163. In particular, the image I created resembles this image on Prof. Hanson's home page, as well as the figure from the Physics World article.
context_page_description: Cosmogony is any model concerning the origin of either the cosmos or the universe.
context_section_description: In astronomy, cosmogony refers to the study of the origin of particular astrophysical objects or systems, and is most commonly used in reference to the origin of the universe, the Solar System, or the Earth–Moon system. The prevalent cosmological model of the early development of the universe is the Big Bang theory. Sean M. Carroll, who specializes in theoretical cosmology and field theory, explains two competing explanations for the origins of the singularity, which is the center of a space in which a characteristic is limitless. An example of this is when the black hole reaches a point of singularity and gravity, as the characteristic of this space becomes boundless. It is generally accepted that the universe began at a point of singularity, and when the singularity of the universe started to expand, the Big Bang occurred, which evidently began the universe. The other explanation, held by proponents like Stephen Hawking, asserts that "time" did not exist when it emerged along with the universe. This assertion implies that the universe does not have an origin story. Time did not exist "prior" to the creation of the universe. Hence, it is unclear whether properties such as space, or time emerged with the singularity and the universe as it is known.
  Despite the research, there is currently no theoretical model that explains the earliest moments of the universe's existence (during the Planck epoch) due to a lack of a testable theory of quantum gravity. Nevertheless, researchers in string theory, its extensions (see M theory), and of loop quantum cosmology like Barton Zwiebach and Washington Taylor, have proposed solutions to assist in the explanation of the universe's earliest moments Cosmogonists have only tentative theories for the early stages of the universe and its beginning. The proposed theoretical scenarios include string theory, M-theory, the Hartle—Hawking initial state, string landscape, cosmic inflation, the Big Bang, and the ekpyrotic universe. Some of these proposed scenarios, like the string theory, are compatible; whereas, others are not.
caption: Projection of a Calabi–Yau manifold from string theory. In quantum physics, there remain different, plausible theories regarding what combination of "stuff", space, or time emerged along with the singularity (and therefore this universe).[9] The main disagreement among theories is whether time existed "before" the emergence of our universe.
exif: {}