Lecture
This lecture covers the evolution and morphology of galaxies, starting with Hubble's 'evolutionary' sequence, which classifies galaxies into elliptical and spiral types. It discusses the characteristics of elliptical galaxies, such as their lack of star formation and presence of old stars and dust. The lecture also explores spiral galaxies, focusing on their structure and the presence of young stars. Additionally, it delves into the rotation of galaxies and how their morphology changes with distance.