In this special edition of the Naked Astronomy podcast we look at the astronomical events held at the Cambridge Science Festival. We'll hear from Dr Dan Stark about exploring the early Universe, find out what tooth x-rays and telescopes have to do with the man who coined the term "Big Bang" and ask if our Universe is but one of many... Plus, we catch up with Carolin Crawford, Andrew Pontzen and Dominic Ford to find out what they've been doing this month to bring space science to the wider public.