Linked from

The 45 pages that link to Expansion of the Universe, each with the reason it gives.

• James Webb Space TelescopeRelated: Expansion stretches ancient light into infrared wavelengths Webb can detect.

• Dark energyNarrower topic: Dark energy is inferred from the changing rate of this expansion.

• Big Bang nucleosynthesisRelated: Expansion cooled the plasma and ended nucleosynthesis before heavier elements could form abundantly.

• Big BangRelated: It describes cosmic expansion without requiring galaxies to fly from a central point through space.

• Lambda-CDM modelNarrower topic: Expansion is the evolving quantity described by the model’s background solution.

• Cosmic webNarrower topic: Expansion competes with gravitational collapse as large-scale structure evolves.

• Cosmological redshiftNarrower topic: Cosmological redshift is the wavelength-level effect of this broader expansion.

• Local GroupCompared with: Local gravitational binding counteracts expansion across the group’s limited extent.

• Observable universeRelated: Expansion makes the observable radius larger than the universe’s age multiplied by light speed.

• AstrophysicsRelated: Its dynamics connect galaxy observations to the universe's contents and history.

• ReionizationRelated: Expansion stretched radiation and diluted matter while the ionized regions grew.

• Steady-state theoryNarrower topic: It is the process the theory balances with continuous matter creation.

• George GamowRelated: Expansion cools the primordial universe, setting the conditions for the nucleosynthesis Gamow studied.

• Recombination (cosmology)Narrower topic: Expansion diluted and cooled the plasma, driving it toward neutral atoms.

• Comoving distanceRelated: Comoving distance factors out this expansion to keep the coordinate separation fixed.

• Alexander FriedmannNarrower topic: Friedmann’s solutions showed that expansion could follow from Einstein’s equations.

• Redshift-space distortionsCompared with: Expansion sets the mean redshift-distance relation; peculiar velocities create deviations from it.

• Age of the universeRelated: The universe's expansion history is central to calculating elapsed cosmic time.

• Hubble flowRelated: It produces the large-scale recession described by Hubble flow without requiring galaxies to move through space.

• Primordial nucleosynthesisRelated: Expansion cooled and diluted the plasma, eventually making nuclear reactions too slow.

• Virgo SuperclusterNarrower topic: Expansion limits the Virgo Supercluster’s cohesion and carries its most distant galaxies apart.

• Ralph AlpherRelated: Expansion cooled the early universe and limited the time available for nuclear reactions in Alpher’s model.

• Big RipNarrower topic: The Big Rip is an extreme future outcome of expansion accelerating ever faster.

• Heat death of the universeRelated: Expansion dilutes matter and radiation and can isolate distant regions.

• Big CrunchNarrower topic: The Big Crunch requires this expansion to halt before collapse begins.

• Dark Energy SurveyRelated: Measuring its history was a central aim of the survey.

• Robert HermanRelated: Expansion stretches the relic radiation’s wavelengths and lowers its temperature.

• Cosmic neutrino backgroundNarrower topic: Expansion redshifted relic neutrino momenta and cooled the background.

• Outer spaceRelated: It changes large-scale distances in space without requiring galaxies to move through space in the ordinary sense.

• Quark epochRelated: Expansion lowered the plasma’s temperature and density.

• Raychaudhuri equationRelated: Applied to cosmological fluid worldlines, the equation constrains expansion and gravitational collapse.

• Static universeNarrower topic: The discovery of expansion overturned the premise that cosmic scale remains fixed.

• Universe (cosmology)Related: It accounts for large-scale cosmic expansion without requiring galaxies to move through space from a central point.

• Dipole repellerCompared with: Expansion carries galaxies apart generally, while the repeller describes a directional component of their motion.

• Penrose–Hawking singularity theoremsRelated: Hawking-type results use sufficiently strong expansion to establish past-directed incompleteness.

• Physical cosmologyRelated: Its changing rate is central to reconstructing cosmic history and forecasting the universe’s fate.

• Structure formationRelated: Expansion competes with gravity and sets the rate at which fluctuations can grow.

• Chronology of the universeRelated: Expansion drives the cooling that links successive eras in cosmic history.

• Photon epochNarrower topic: Expansion drives the changing energy densities that define the epoch's boundary.

• SN 1572Related: Measurements of distant Type Ia supernovae revealed the expansion’s accelerating rate.

• Tired lightCompared with: It explains cosmological redshift through changing scale rather than photon energy loss in static space.

• Evolution (physics)Broader topic: Cosmology applies evolution laws to the changing large-scale state of the universe.

• Hubble volumeNarrower topic: Expansion determines the time-dependent scale from which the Hubble volume is constructed.

• Timeline of the far futureNarrower topic: Expansion determines whether distant galaxies remain accessible and shapes the universe’s long-term evolution.

• Ultimate fate of the universeNarrower topic: Its rate and acceleration determine whether cosmic distances keep growing or eventually shrink.