28.3 The Distribution of Galaxies in Space
29.2 A Model of the Universe
25.3 The Mass of the Galaxy
26.3 Properties of Galaxies
Astronomy: OpenStax
25.1 The Architecture of the Galaxy
Exploring Black Holes: General Relativity & Astrophysics
28.2 Galaxy Mergers and Active Galactic Nuclei
28.5 The Formation and Evolution of Galaxies and Structure in the Universe
28.1 Observations of Distant Galaxies