This week, we look at the latest science news and tackle more of your questions. We uncover the source of the asteroid that finished off the dinosaurs, find out how moray eels eat like aliens, and although we know that breast is best, could nicotine in smokers' breast milk be affecting childrens' behaviour? Also, is the future of formula one eco-friendly? Meera investigates race cars running on biofuels and built from hemp and cashew nuts! We discuss award winning beards, eerie glowing fish and what makes for a long life. Plus, we find out what to expect at this year's BA Festival of Science in York, and in Kitchen Science Dave demonstrates how a pair of paperbacks can be stronger than a quarterback.