Observing the evolution of galaxies

Sackler Lecture
Leiden Observatory
Abstract: 

Modern telescopes allow us to observe galaxies out to high redshift. These observations, while still far from complete, allow us to give first answers to questions like: at what redshift was a typical galaxy assembled? At what redshift were half the stars formed? What processes played a role in galaxy formation? Is the observed galaxy formation and evolution consistent with our standard cosmological model?