This week, clean coal technology - how to get the energy from coal without digging it up, why GM goats are helping to combat nerve gas attacks, and how scientists have found the 'itch' gene. We also find out why smog causes heart disease, how seafood in space can help to heal astronauts, and the weight of leaves on an average tree. Plus Drs Chris and Phil take a look at your science questions including 'tasting' music, the best way to dry your washing and can the moon affect the shapes of weather systems? In Kitchen Science Ben and Dave explain how to make a lens with a plastic bottle and some... Like this podcast? Please help us by supporting the Naked Scientists