Jab to alleviate asthma attacks, and amber in Antarctica

In the news, a potentially game-changing new injection to ease the suffering caused by asthma attacks shows success. Also, who should fix the gas leak on the International Space Station? Then, fossilised footsteps fuel speculation over interactions between early human ancestors, and we find out what the presence of amber in Antarctica reveals about the history of this now desloate land... Like this podcast? Please help us by supporting the Naked Scientists