The Universe is permeated by photons that are cosmological in origin and almost as old as the Universe itself. They are what we call the Cosmic Microwave Background (CMB). In this talk, I will describe how we observe the CMB and what information we can extract from it, as well as explain the physics behind it. This talk is explicitly aimed undergraduate students regardless of their major. 

About the Speaker:

Julian Georg is doing research in the area of theoretical cosmology. His work addresses fundamental questions about our Universe: What is the Dark Matter that makes up roughly a quarter of the Universe, but is not like any of that matter that we know? How did all the contents of the Universe originate from the hot primordial plasma? And what were the conditions that allowed the Universe to undergo a phase of rapid and accelerated expansion at the very beginning?