KnowraAge of the universeLinked fromLinked fromThe 10 pages that link to Age of the universe, each with the reason it gives.All 10Related 9Compared with 1Hubble tensionRelated: Different expansion histories imply different estimates of the universe’s age.Friedmann equationsRelated: Integrating the expansion history gives the universe’s age.Observable universeRelated: The finite cosmic age limits the time available for signals to reach Earth.Age of EarthRelated: Earth formed billions of years after the universe began.Hubble flowRelated: The measured expansion rate helps constrain how long cosmic expansion has proceeded.Particle horizonRelated: The finite time available for signals is one ingredient in the horizon’s size.Walter BaadeRelated: The longer distances implied by Baade’s work helped resolve a conflict between expansion age and stellar ages.Wilkinson Microwave Anisotropy ProbeRelated: WMAP data yielded a precise estimate of roughly 13.7 billion years.Static universeRelated: A truly eternal static cosmos avoids the finite cosmic age inferred from expansion.