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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.
The concept was popularized by Carl Sagan in his 1977 book The Dragons of Eden and on his 1980 television series Cosmos. [2] Sagan goes on to extend the comparison in terms of surface area, explaining that if the Cosmic Calendar were scaled to the size of a football field, then "all of human history would occupy an area the size of [his] hand".
The Book of Curiosities (Arabic: Kitāb Gharā’ib al-funūn wa-mulaḥ al-ʿuyūn, literally translated as Book of Curiosities of the Sciences and Marvels for the Eyes) is an anonymous 11th-century Arabic cosmography from Fatimid Egypt containing a series of early illustrated maps of the world and celestial diagrams of the universe and sky ...
How It Began: A Time Traveler's Guide to the Universe is a non-fiction book by the astronomer Chris Impey that discusses the history of the universe, with chapters ranging from the proximate universe to within an iota of the Big Bang. It was published as a hardcover by W. W. Norton & Company in 2012 and as a paperback in 2013.
In physical cosmology, the age of the universe is the time elapsed since the Big Bang.Astronomers have derived two different measurements of the age of the universe: [1] a measurement based on direct observations of an early state of the universe, which indicate an age of 13.787 ± 0.020 billion years as interpreted with the Lambda-CDM concordance model as of 2021; [2] and a measurement based ...
The timeline of the early universe outlines the formation and subsequent evolution of the Universe from the Big Bang (13.799 ± 0.021 billion years ago) [1] to the present day. An epoch is a moment in time from which nature or situations change to such a degree that it marks the beginning of a new era or age .
The timeline of the Universe lists events from its creation to its ultimate final state. For a timeline of the universe from formation to the present day, see: Timeline of cosmological epochs For a timeline of the universe from the present to its presumed conclusion, see: Timeline of the far future
The physical universe is defined as all of space and time [a] (collectively referred to as spacetime) and their contents. [10] Such contents comprise all of energy in its various forms, including electromagnetic radiation and matter, and therefore planets, moons, stars, galaxies, and the contents of intergalactic space.