Natural SciencesAstronomyPhysicsAstrophysicsExtragalactic AstronomyStar FormationCosmic Star Formation HistoryGalactic Star FormationGalaxy EvolutionGalaxy FormationStar Formation In GalaxiesStellar EvolutionEarly Star FormationEarly-type GalaxiesGalaxy Mass Dependence Of Star FormationMassive Star-forming RegionsStar-forming Galaxies