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10 −5 s ~ 1 s: 10 12 K ~ 10 10 K (150 MeV ~ 1 MeV) Quarks are bound into hadrons. A slight matter-antimatter asymmetry from the earlier phases (baryon asymmetry) results in an elimination of anti-baryons. Until 0.1 s, muons and pions are in thermal equilibrium, and outnumber baryons by about 10:1. Close to the end of this epoch, only light ...
The timeline of the Universe lists events from its creation to its ultimate final state. For a timeline of the universe from the present to its presumed conclusion, see: Timeline of the far future; Chronology of the universe; Timeline of the universe
Download as PDF; Printable version; ... Timeline of the early universe; ... Timeline of knowledge about galaxies, clusters of galaxies, and large-scale structure ...
The Hindu cosmological time cycles explained in the Surya Siddhanta, give the average length of the sidereal year (the length of the Earth's revolution around the Sun) as 365.2563627 days, which is only 1.4 seconds longer than the modern value of 365.256363004 days. [10]
A graphical view of the Cosmic Calendar, featuring the months of the year, days of December, the final minute, and the final second. The Cosmic Calendar is a method to visualize the chronology of the universe, scaling its currently understood age of 13.787 billion years to a single year in order to help intuit it for pedagogical purposes in science education or popular science.
3 February 1966: First soft landing on another world (the Moon). First photos from another world. USSR Luna 9 [19] 1 March 1966: First impact into another planet (Venus). USSR Venera 3: 16 March 1966: First orbital docking between two spacecraft. USA (NASA) Gemini 8/Agena target vehicle: 3 April 1966: First artificial satellite around another ...
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The timeline of discovery of Solar System planets and their natural satellites charts the progress of the discovery of new bodies over history. Each object is listed in chronological order of its discovery (multiple dates occur when the moments of imaging, observation, and publication differ), identified through its various designations (including temporary and permanent schemes), and the ...