The explosive event that is theorized to be the beginning of the universe.[1] Time, space, energy and matter are all thought to have come into existence 13.7 billions years ago, in the event called the Big Bang.[2]
In its first moments, the universe was infinitely dense, unimaginably hot, and contained pure energy; but within a tiny fraction of a second, vast numbers of of fundamental particles had appeared, created out of energy as the universe cooled. Within a few thousand years, these particles combined to form the first atoms.[2]
References[]
- ^ Baumann, Mary K.; Will Hopkins, Loralee Nolletti, Michael Soluri, Steven Hawking (foreword) and Ray Villard (astronomy consultant) (2007). Cosmos: Images From Here to the Edge of the Universe. London: Duncan Baird Publishers. ISBN 1844834761 Check
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(help); - ^ a b Rees, Martin (ed.) (2008). Universe: The Definitive Visual Guide. Dorling Kindersley Inc. ISBN 9780756636708.
This article is part of Project Science Glossary, a All Birds project that aims to write comprehensive articles on each term related to science. |
This article is part of Project Astronomy, a All Birds project that aims to write comprehensive articles on each term related to astronomy. |
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