Definition
In physical cosmology, Big Bang nucleosynthesis is a model for the production of light nuclei during the first ~20 minutes of the evolution of the universe. The predictions of BBN rely on a combination of thermodynamic arguments and measurements of rates of nuclear reactions that are expected to be active in the early universe. Refined models tend to agree well with observations of these light element abundances. The model is one of the key concepts in standard cosmology.
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2dF Galaxy Redshift SurveyAbsorption spectroscopyAbundance of elementsAge of the universeAlan GuthAlbert EinsteinAlexander FriedmannAlpher–Bethe–Gamow paperAnnual Review of Nuclear and Particle ScienceAnthony L. TurkevichArno Allan PenziasAtomic nucleusB2FH paperBOOMERanG experimentBaryogenesisBaryonBaryon acoustic oscillationsBaton Rouge, LouisianaBeryllium-7Big BangBig BounceBig CrunchBig RipBig SlurpBinding energyBlack Hole InitiativeBrian SchmidtCRC PressCarbonCarlos BertulaniChristiaan HuygensChronology of the universeCopernicus satelliteCosmic Background ExplorerCosmic inflationCosmic microwave backgroundCosmic microwave background radiationCosmic neutrino backgroundCosmological lithium problemCosmological phase transitionDark Energy SurveyDark energyDark matterDavid Schramm (astrophysicist)DeuteriumDiscovery of cosmic microwave background radiationDwarf galaxyDwarf starEarly universeEdwin HubbleElectronElectronvoltElectron–positron annihilationElectroweak epochEnrico FermiEntropyExpansion of the universeFred HoyleFree neutronFriedmann-Robertson-Walker modelFriedmann equationsFriedmann–Lemaître–Robertson–Walker metricFundamental constantsFuture of an expanding universeGalaxy filamentGalaxy formation and evolutionGalileo GalileiGeoffrey BurbidgeGeorge F. R. EllisGeorge GamowGeorge SmootGeorges LemaîtreGrand unification epochGravitational wave backgroundHannes AlfvénHans BetheHeat death of the universeHelium-3Helium-4Herman BondiHistory of the Big Bang theoryHubble's lawInflation (cosmology)Interstellar mediumIsaac NewtonJim PeeblesJohannes KeplerJohn C. MatherJürgen EhlersLambda-CDM modelLarge quasar groupLawrenciumList of cosmologistsLithium-7Lulu (company)Marc AaronsonMargaret BurbidgeMeVMetal-poorMonte Carlo integrationMorrisville, North CarolinaNeutrinoNeutrino decouplingNeutronNicholas B. SuntzeffNicolaus CopernicusNuclear binding energyNuclear fusionNucleosynthesisNumber densityObservable universeObservational cosmologyOxygen-20Periodic tablePhotonPhysical ReviewPhysical cosmologyPlanck (spacecraft)Planck epochPopulation II starsPositronProtonQuark epochQuasarRadioactiveRalph AlpherRalph Asher AlpherRashid SunyaevRecombination (cosmology)RedshiftReionizationRelic abundanceRichard C. TolmanRobert H. DickeRobert Woodrow WilsonRoger PenroseScale factor (cosmology)Shape of the universeSloan Digital Sky SurveySpite plateauStandard ModelSteady state modelStellar nucleosynthesisStephen HawkingStructure formationThomas GoldTimeline of cosmological theoriesTriple-alpha processTritiumUltimate fate of the universeUniverseVera RubinVictor GoldschmidtWeak interactionWilkinson Microwave Anisotropy ProbeWillem de SitterWilliam A. FowlerYakov Zeldovich
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