Hoppy yeast with CRISPR and how big is the universe?

This week on the show we hear from Brewer Jon Seltin, who gives us the low down on a science story that is taking the beer world by storm! Researchers have recently used CRISPR to modify brewer's yeast to make it taste like hops, and brewed a craft beer from this modified yeast that has beer judges swooning! Also this week Chris poses the question "How big is the universe?", and then attempts to answer it with crockery metaphors.