KnowraGalaxy groupLinked fromLinked fromThe 14 pages that link to Galaxy group, each with the reason it gives.All 14Broader topic 3Related 2Narrower topic 6Compared with 3Galaxy clusterCompared with: Groups are less massive and typically contain fewer galaxies than clusters.Intracluster mediumCompared with: Groups also contain hot gas, but their shallower gravitational wells produce different conditions.cD galaxyCompared with: cD galaxies are especially characteristic of rich clusters rather than smaller galaxy groups.