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Jun 13, 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!
- Dark Matter
For the first 150 million years after the Big Bang, there...
- Dark Matter
Jun 10, 2024 · Physicists have proposed a new theory: in the first quintillionth of a second after Big Bang, the universe may have sprouted microscopic black holes.
Jun 13, 2024 · The Big Bang is instead representative of a moment in time, 13.8 billion years ago, when the Universe was in an ultra-hot, ultra-dense state: filled with matter, antimatter, and radiation.
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
Jun 6, 2024 · Cosmic microwave background (CMB), electromagnetic radiation filling the universe that is a residual effect of the big bang 13.8 billion years ago. Because the expanding universe has cooled since this primordial explosion, the background radiation is in the microwave region of the electromagnetic spectrum.
- Frank H. Shu
4 days ago · More-or-less all elements heavier than helium were produced in the 13.8 billion years between the Big Bang and the present day. ... The authors of a study in Nature that analysed the explosion ...
3 days ago · According to traditional Big Bang cosmology, the electroweak epoch began 10 −36 seconds after the Big Bang, when the temperature of the universe was low enough (10 28 K) for the electronuclear force to begin to manifest as two separate interactions, the strong and the electroweak interactions.
