This week, two of the biggest science stories of the year broke - the first ever British astronaut and a 47-million-year-old fossil that tells us how humans and other primates are related to the rest of the animal kingdom. We've decided to ignore those and instead Alok Jha and James Randerson have hopped on the train to Hay-on-Wye where they've been reading books, listening to lectures and soaking up the sunshine. Source