Wednesday 15 July 2015 Speaker: Chris Pearson (RAL/Space) Title: "101 Cosmology: What is our Universe filled with?" Abstract: What is the Universe made of ? Or more pertinently how much of the stuff contained in our Universe do we actually understand. From inflation, through the first 3 minutes, from the surface of last scattering through the cosmic dark ages to the present epoch, how has our Universe evolved and what clues can observations give us about its content and ultimately its fate.