Speaker: Professor Anne Green
Galaxies are like icebergs: the stars we can see are only a small fraction of what’s there. In fact the vast majority of the material in the Universe is in the form of invisible and exotic so-called ‘dark matter’. Particle physics provides us with a selection of dark matter candidates, ranging from extremely light new particles to black holes formed just after the Big Bang. After outlining the evidence for dark matter, I will describe the properties of the dark matter suspects and our attempts to track them down.