Park Man-Soo
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2 days ago · Chronology in five stages. Diagram of evolution of the (observable part) of the universe from the Big Bang (left), the CMB -reference afterglow, to the present. For the purposes of this summary, it is convenient to divide the chronology of the universe since it originated, into five parts.
2 days ago · Geshnizjani, Ling and Quintin studied whether the onset of the Big Bang is more like the center of a black hole, or more like an event horizon. Their investigation builds upon a theorem proved in 2003 by Arvind Borde, Alan Guth (one of the first people to propose the idea of inflation) and Alexander Vilenkin. This theorem, known by the authors ...
2 days ago · The Big Bang, on its own, offers no explanation as to why the initial expansion rate at the moment of the Universe’s birth balances the total energy density so perfectly, leaving no room for ...
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What was the universe like before the Big Bang?
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2 days ago · Two of the greatest successes of the Big Bang theory are its prediction of the almost perfect black body spectrum and its detailed prediction of the anisotropies in the cosmic microwave background. The CMB spectrum has become the most precisely measured black body spectrum in nature. Predictions based on the Big Bang model
4 days ago · Mar. 1, 2024 — Astronomers can use supercomputers to simulate the formation of galaxies from the Big Bang 13.8 billion years ago to the present day. But there are a number of sources of error...
2 days ago · These models solve the horizon problem through an expanding epoch well before the Big Bang, and then generate the required spectrum of primordial density perturbations during a contracting phase leading to a Big Crunch. The Universe passes through the Big Crunch and emerges in a hot Big Bang phase.
3 days ago · The Big Bang Theory is one of the most significant and widely accepted explanations for the origin and evolution of the universe. It suggests that the universe began from an extremely hot and dense point approximately 13.8 billion years ago and has been expanding ever since.
