EntityQ2998314· pop 18· linked from 185 articlesobservational cosmologySign in to savecosmologyConnectionsThe Astrophysical JournalEntitygeneral relativityEntitycosmic microwave backgroundEntitygalaxy formation and evolutionEntityuniverseEntityArno Allan PenziasEntityNatureEntityYakov ZeldovichEntityexpansion of the universeEntityactive galactic nucleusEntityW. M. Keck ObservatoryEntityMount Wilson ObservatoryEntityWilkinson Microwave Anisotropy ProbeEntityHubble Ultra-Deep FieldEntitycosmic distance ladderEntityRobert H. DickeEntitylarge-scale structure of the UniverseEntitySunConceptAlbert EinsteinPersonIsaac NewtonPersonCategoriesObservational astronomyObservational cosmologyPhysical cosmology