Search results
The Big Bang is a physical theory that describes how the universe expanded from a primordial state of high density and temperature. [1] . It was first proposed as a physical theory in 1931 by Roman Catholic priest and physicist Georges Lemaître when he suggested the universe emerged from a "primeval atom".
May 6, 2024 · The Short Answer: The big bang is how astronomers explain the way the universe began. It is the idea that the universe began as just a single point, then expanded and stretched to grow as large as it is right now—and it is still stretching!
The big-bang model is the widely accepted theory of the origin and evolution of the universe from a hot and dense state 13.8 billion years ago. Learn about its assumptions, predictions, observations, and challenges from Britannica's experts.
- The Editors of Encyclopaedia Britannica
The Big Bang Theory is an astrophysical model of the universe that can be observed by human senses. The theory gives details about the origins of the universe from its early formations to its modern-day evolutions.
Jul 26, 2023 · The Big Bang Theory explains how the universe began with an infinitely hot and dense single point that inflated to form the ever-expanding cosmos we see today.
Learn how the universe evolved from the Big Bang, the origin of all matter and energy, and what it is made of. Discover the latest discoveries and stories about dark matter, dark energy, and the cosmic web.
Jan 17, 2017 · Learn how the big bang theory describes the universe's origin from a single primordial atom to the present day. Explore the key events, discoveries, and mysteries of cosmic history.
