<Table> <Tr> <Td> Part of a series on </Td> </Tr> <Tr> <Th> Physical cosmology </Th> </Tr> <Tr> <Td> </Td> </Tr> <Tr> <Td> <Ul> <Li> Big Bang Universe </Li> <Li> Age of the universe </Li> <Li> Chronology of the universe </Li> </Ul> </Td> </Tr> <Tr> <Td> Early universe (show) <Table> <Tr> <Td> <Ul> <Li> Planck epoch </Li> <Li> Grand unification epoch </Li> <Li> Quark epoch </Li> <Li> Hadron epoch </Li> <Li> Lepton epoch </Li> <Li> Photon epoch </Li> <Li> Big Bang nucleosynthesis </Li> <Li> Inflation </Li> <Li> Dark Ages </Li> </Ul> </Td> </Tr> <Tr> <Th> Backgrounds </Th> </Tr> <Tr> <Td> <Ul> <Li> Cosmic background radiation (CBR) </Li> <Li> Gravitational wave background (GWB) </Li> <Li> Cosmic microwave background (CMB) Cosmic neutrino background (CNB) </Li> <Li> Cosmic infrared background (INB) </Li> </Ul> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> Expansion Future (hide) <Ul> <Li> Hubble's law Redshift </Li> <Li> Expansion of the universe </Li> <Li> Accelerating expansion of the universe </Li> <Li> FLRW metric Friedmann equations </Li> <Li> Inhomogeneous cosmology </Li> <Li> Future of an expanding universe </Li> <Li> Ultimate fate of the universe </Li> <Li> Heat death of the universe </Li> <Li> Big Rip </Li> <Li> Big Crunch </Li> <Li> Big Bounce </Li> </Ul> </Td> </Tr> <Tr> <Td> Components Structure (show) <Table> <Tr> <Th> Components </Th> </Tr> <Tr> <Td> <Ul> <Li> Lambda - CDM model </Li> <Li> Baryonic matter </Li> <Li> Energy </Li> <Li> Radiation </Li> <Li> Dark energy <Ul> <Li> Quintessence </Li> <Li> Phantom energy </Li> </Ul> </Li> <Li> Dark matter <Ul> <Li> Cold dark matter </Li> <Li> Warm dark matter </Li> <Li> Hot dark matter </Li> </Ul> </Li> <Li> Dark radiation </Li> </Ul> </Td> </Tr> <Tr> <Th> Structure </Th> </Tr> <Tr> <Td> <Ul> <Li> Shape of the universe </Li> <Li> Reionization Structure formation </Li> <Li> Galaxy formation </Li> <Li> Large - scale structure </Li> <Li> Large quasar group </Li> <Li> Galaxy filament </Li> <Li> Supercluster </Li> <Li> Galaxy cluster </Li> <Li> Galaxy group </Li> <Li> Local Group </Li> <Li> Void </Li> </Ul> </Td> </Tr> </Table> </Td> </Tr> <Tr> <Td> Experiments (show) <Ul> <Li> Black Hole Initiative (BHI) </Li> <Li> BOOMERanG </Li> <Li> Cosmic Background Explorer (COBE) </Li> <Li> Illustris project </Li> <Li> Planck space observatory </Li> <Li> Sloan Digital Sky Survey (SDSS) </Li> <Li> 2dF Galaxy Redshift Survey ("2dF") </Li> <Li> Wilkinson Microwave Anisotropy Probe (WMAP) </Li> </Ul> </Td> </Tr> <Tr> <Td> <Ul> <Li> Scientists </Li> </Ul> (show) <Ul> <Li> Aaronson </Li> <Li> Alfvén </Li> <Li> Alpher </Li> <Li> Bharadwaj </Li> <Li> Copernicus </Li> <Li> de Sitter </Li> <Li> Dicke </Li> <Li> Ehlers </Li> <Li> Einstein </Li> <Li> Ellis </Li> <Li> Friedman </Li> <Li> Galileo </Li> <Li> Gamow </Li> <Li> Guth </Li> <Li> Hawking </Li> <Li> Hubble </Li> <Li> Lemaître </Li> <Li> Linde </Li> <Li> Mather </Li> <Li> Newton </Li> <Li> Penrose </Li> <Li> Penzias </Li> <Li> Rubin </Li> <Li> Schmidt </Li> <Li> Smoot </Li> <Li> Starobinsky </Li> <Li> Steinhardt </Li> <Li> Suntzeff </Li> <Li> Sunyaev </Li> <Li> Tolman </Li> <Li> Wilson </Li> <Li> Zel'dovich </Li> </Ul> </Td> </Tr> <Tr> <Td> Subject history (show) <Ul> <Li> Discovery of cosmic microwave background radiation </Li> <Li> History of the Big Bang theory </Li> <Li> Religious interpretations of the Big Bang theory </Li> <Li> Timeline of cosmological theories </Li> </Ul> </Td> </Tr> <Tr> <Td> <Ul> <Li> </Li> <Li> Cosmology portal </Li> <Li> Astronomy portal </Li> </Ul> </Td> </Tr> <Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> </Table> <Tr> <Td> Part of a series on </Td> </Tr> <Tr> <Th> Physical cosmology </Th> </Tr>

The future of the universe depends on its critical density