SpaceSpeak's Peter Beery joins us in this week's Science Weekly podcast to chat all about how he is sending our Mission Transmission message into space and we hear how you can go to space with Mission Transmission! We catch up with Sidney McSprocket who is teaching us about Great British Scientists - this week its about the inventor of the toilet! Whilst a beautiful orpiman is the subject of Dangerous Dan. In Kareena's Chemistry, Kareena takes flight into chemistry of the air which is helping to tackle the challenge of climate change in innovative new ways. Plus in Science in the News, Dan talks about record breaking heats!