This week we investigate green clean ups. Can nature's recyclers, bacteria and fungi, help us clean up man-made environmental problems from oil spills to mining slag heaps? Plus in the news, how the Gemini Planet Imager is helping astronomers 'see' exoplanets, why pregnant women are at a higher risk of a car crash and why don't octopuses get tied up in knots? Like this podcast? Please help us by supporting the Naked Scientists