Graphical timeline of the universe

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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 small step, one hundred million years. The past is denoted by a minus sign: e.g., the oldest rock on Earth was formed about four billion years ago and this is marked at -4e+09 years. The "Big Bang" event most likely happened 13.8 billion years ago; see age of the Universe.

Graphical timeline of the Big Bang Geology of Mars#Mineralogical timeline Graphical timeline of the Stelliferous Era Pre-Nectarian Nectarian Lower Imbrian Upper Imbrian Eratosthenian Copernican period Lunar geologic timescale Eoarchean Paleoarchean Mesoarchean Neoarchean Paleoproterozoic Mesoproterozoic Neoproterozoic Paleozoic Mesozoic Cenozoic Era (geology) Hadean Archean Proterozoic Phanerozoic Eon (geology) Geological time scale Formation and evolution of the Solar System#The Sun and planetary environments Life on Mars Formation and evolution of the Solar System#The Sun and planetary environments Precambrian Titan (moon)#Prebiotic conditions and possible life Terraforming#Paraterraforming Solar shade Origin of life Formation and evolution of the Solar System#Asteroid belt White dwarf Asymptotic giant branch Horizontal branch Formation and evolution of the Solar System#The Sun and planetary environments Red giant Main sequence Protostar Elliptical galaxy Milky Way#Environment Andromeda-Milky Way collision Formation and evolution of the Solar System#Planetary migration Neptune Formation and evolution of the Solar System#Late Heavy Bombardment and after Formation and evolution of the Solar System#Terrestrial planets Milky Way#Age Black dwarf Formation and evolution of the Solar System#The Sun and planetary environments Planetary nebula Helium flash Formation and evolution of the Solar System#The Sun and planetary environments Formation and evolution of the Solar System#Long-term stability Formation and evolution of the Solar System#Moon–ring systems Earth#Future Earth#Future Formation and evolution of the Solar System#The Sun and planetary environments Portal:Current events Mammals Multicellular life Acasta Gneiss Zircon#Radiometric dating Earth Geological time scale Sun#Life cycle Formation and evolution of the Solar System#Pre-solar nebula Formation and evolution of the Solar System#Formation of planets Formation and evolution of the Solar System#Formation Supernova Population I stars Galaxy formation and evolution SMSS J031300.36-670839.3 Reionization Big Bang Chronology of the universe#Habitable epoch

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