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This is the timeline of the
stelliferous era Observations suggest that the expansion of the universe will continue forever. The prevailing theory is that the universe will cool as it expands, eventually becoming too cold to sustain life. For this reason, this future scenario once popularly c ...
but also partly charts the primordial era, and charts more of the
degenerate era Observations suggest that the expansion of the universe will continue forever. The prevailing theory is that the universe will cool as it expands, eventually becoming too cold to sustain life. For this reason, this future scenario once popularly c ...
of the
heat death Heat death may refer to: *Heat death of the universe, a proposed cosmological event ** Heat death paradox, a philosophical examination of the cosmological event *Hyperthermia, injury up to and including death, from excessive heat *Thermal shock, t ...
scenario. The scale is 10 \times \log_\ where \ is the time since the Big Bang expressed in years. Example: one million years is \ = 1000000;\ \ 10 \times \log_\ = 10\times 6 = 60.


Timeline

ImageSize = width:720 height:2000 PlotArea = left:40 right:235 bottom:75 top:75 Colors = id:period1 value:rgb(1,1,0.7) # light yellow id:period2 value:rgb(0.7,0.7,1) # light blue id:events value:rgb(1,0.7,1) # light purple id:era2 value:lightorange id:era1 Value:yellowgreen DateFormat = yyyy Period = from:56 till:200 TimeAxis = format:yyyy orientation:vertical ScaleMajor = unit:year increment:10 start:60 ScaleMinor = unit:year increment:1 start:56 AlignBars = justify BarData = bar:Era bar:Dummy2 bar:Dummy3 bar:Periods bar:Dummy4 bar:Events TextData = fontsize:M pos:(250,75) text:"
Photon epoch In physical cosmology, the photon epoch was the period in the evolution of the early universe in which photons dominated the energy of the universe. The photon epoch started after most leptons and anti-leptons were annihilated at the end of the l ...
" pos:(260,657) text:" ZOOM IN" pos:(107,1645) text:"
NEXT Next may refer to: Arts and entertainment Film * ''Next'' (1990 film), an animated short about William Shakespeare * ''Next'' (2007 film), a sci-fi film starring Nicolas Cage * '' Next: A Primer on Urban Painting'', a 2005 documentary film Lit ...
" pos:(65,1630) text:"The Degenerate Era" pos:(65,120) text:" The Primordial Era" pos:(85,105) text:"PREVIOUS" PlotData= textcolor:black fontsize:M width:165 bar:Era mark:(line,white) align:center shift:(0,0) from:60 till:140 color:era2 text:" The Stelliferous Era" width:55 bar:Dummy2 bar:Dummy3 width:165 bar:Periods align:center shift:(0,0) mark:(line,white) from:56 till:80 color:period1 text:" Dark Ages" from:80 till:90 color:period2 text:"
Reionization In the fields of Big Bang theory and cosmology, reionization is the process that caused matter in the universe to reionize after the lapse of the " dark ages". Reionization is the second of two major phase transitions of gas in the universe (t ...
" from:98 till:100 color:period1 text:" Formation of the Milky Way~galactic disk" shift:(0,2) from:100 till:102 color:period2 text:"Life on Earth" from:190 till:200 color:period1 width:55 bar:Dummy4 width:55 mark:(line,purple) textcolor:black fontsize:M bar:Events color:events align:left shift:(30,-4) at: 56 text:"379,000 years: Hydrogen and helium nuclei ~capture electrons to form stable atoms. Photons ~are no longer able to interact strongly with atoms. ~
Cosmic microwave background radiation In Big Bang cosmology the cosmic microwave background (CMB, CMBR) is electromagnetic radiation that is a remnant from an early stage of the universe, also known as "relic radiation". The CMB is faint cosmic background radiation filling all spac ...
forms." shift:(30,-15) at: 60 text:"One million years" at: 80 text:"100 million years. First star began to shine." at: 88 text:"600 million years ~ Formation of the first galaxy" at: 90 text:"One billion years" at: 96 text:"4 billion years ~ earliest Population I stars" at:100 text:" 9.1 billion years Formation of Earth~ and Sun" at:101 mark:(line,magenta) text:"13.7 billion years, the present day" # at:102 shift:(30,10) text:" 16.7 billion years Collision of Milky Way and~Andromeda galaxies" at:103 shift:(30,0) text:" 19.1 billion years. Sun becomes a red giant ~ and shortly thereafter a white dwarf" at:120 text:"One trillion years" at:140 text:"Formation of new stars ceases.~Stars cease to fuse. " at:150 text:"One quadrillion years. ~Solar systems no longer exist. Planets flung ~out of orbit or consumed by larger bodies.~ Sun has become a~
black dwarf A black dwarf is a theoretical stellar remnant, specifically a white dwarf that has cooled sufficiently to no longer emit significant heat or light. Because the time required for a white dwarf to reach this state is calculated to be longer tha ...
." at:180 text:"One quintillion years" at:195 text:"Galaxies no longer exist. Stars flung out of orbit ~or consumed by black holes." mark:(line,white)


See also

*
Big Bang The Big Bang event is a physical theory that describes how the universe expanded from an initial state of high density and temperature. Various cosmological models of the Big Bang explain the evolution of the observable universe from the ...
*
Cyclic model A cyclic model (or oscillating model) is any of several cosmological models in which the universe follows infinite, or indefinite, self-sustaining cycles. For example, the oscillating universe theory briefly considered by Albert Einstein in 1930 t ...
*
Dyson's eternal intelligence Dyson's eternal intelligence concept (the Dyson Scenario), proposed by Freeman Dyson in 1979, proposes a means by which an immortal society of intelligent beings in an open universe may escape the prospect of the heat death of the universe by ex ...
*
Final anthropic principle Frank Jennings Tipler (born February 1, 1947) is an American mathematical physicist and cosmologist, holding a joint appointment in the Departments of Mathematics and Physics at Tulane University. Tipler has written books and papers on the Omeg ...
*
Future of an expanding universe Observations suggest that the expansion of the universe will continue forever. The prevailing theory is that the universe will cool as it expands, eventually becoming too cold to sustain life. For this reason, this future scenario once popularly c ...
*
Graphical timeline from Big Bang to Heat Death This is the timeline of the Universe from Big Bang to Heat Death scenario. The different eras of the universe are shown. The heat death will occur in around 1.7×10106 years, if protons decay. Timeline ImageSize = width:840 height:2000 PlotAre ...
. Timeline uses double-logarithmic scale. * Graphical timeline of the Big Bang *
Graphical timeline of the universe This more than 20-billion-year timeline of our universe shows the best estimates of major events from the universe's beginning to anticipated future events. Zero on the scale is the present day. A large step on the scale is one billion years; a s ...
. Timeline uses linear time. *
Heat death of the universe The heat death of the universe (also known as the Big Chill or Big Freeze) is a hypothesis on the ultimate fate of the universe, which suggests the universe will evolve to a state of no thermodynamic free energy, and will therefore be unabl ...
* List of other end scenarios than Heat Death * 1 E19 s and more *
Second law of thermodynamics The second law of thermodynamics is a physical law based on universal experience concerning heat and Energy transformation, energy interconversions. One simple statement of the law is that heat always moves from hotter objects to colder objects ( ...
*
Ultimate fate of the Universe The ultimate fate of the universe is a topic in physical cosmology, whose theoretical restrictions allow possible scenarios for the evolution and ultimate fate of the universe to be described and evaluated. Based on available observational ev ...
*
The Last Question "The Last Question" is a science fiction short story by American writer Isaac Asimov. It first appeared in the November 1956 issue of Science Fiction Quarterly and was anthologized in the collections Nine Tomorrows (1959), The Best of Isaac Asi ...
, story by
Isaac Asimov yi, יצחק אזימאװ , birth_date = , birth_place = Petrovichi, Russian SFSR , spouse = , relatives = , children = 2 , death_date = , death_place = Manhattan, New York City, U.S. , nationality = Russian (1920–1922)Soviet (192 ...
which considers the oncome of heat death in the universe and how it may be reversed. {{DEFAULTSORT:Graphical Timeline Of The Stelliferous Era
Stelliferous Era Observations suggest that the expansion of the universe will continue forever. The prevailing theory is that the universe will cool as it expands, eventually becoming too cold to sustain life. For this reason, this future scenario once popularly c ...
Astrophysics Physical cosmology