Search results
5 days ago · Georges Lemaître was a Belgian astronomer and cosmologist who formulated the modern big-bang theory, which holds that the universe began in a cataclysmic explosion of a small, primeval “super-atom.” A civil engineer, Lemaître served as an artillery officer in the Belgian Army during World War I.
- The Editors of Encyclopaedia Britannica
4 days ago · The currently accepted cosmological model is the big bang. In this picture, the expansion of the universe started in an intense explosion 13.8 billion years ago. In this primordial fireball, the temperature exceeded one trillion K, and most of the energy was in the form of radiation.
6 days ago · The Lambda-CDM, Lambda cold dark matter, or ΛCDM model is a mathematical model of the Big Bang theory with three major components: a cosmological constant, denoted by lambda (Λ), associated with dark energy; the postulated cold dark matter, denoted by CDM; ordinary matter
3 days ago · The chronology of the universe describes the history and future of the universe according to Big Bang cosmology. Research published in 2015 estimates the earliest stages of the universe's existence as taking place 13.8 billion years ago, with an uncertainty of around 21 million years at the 68% confidence level. [1] Overview.
4 days ago · A key question centred on the abundances and origins of the chemical elements. In steady-state theory, it was essential that all the elements could be synthesized in stars. By contrast, in the aßγ paper, Alpher and Gamow tried to show that all the elements could be made in the big bang.
5 days ago · The universe is undeniably vast, and from our perspective, it may seem like Earth is in the middle of everything. But is there a center of the cosmos, and if so, where is it? If the Big Bang ...
4 days ago · The Big Bang Theory stands as the prevailing cosmological model for the origin and evolution of the universe, offering profound insights into the nature of our cosmic existence. This article delves into the compelling evidence supporting the Big Bang Theory, a concept that revolutionized our understanding of the cosmos.
