Happy Earth Day! This week, Dan is chatting to an expert on lunar bases Ed Turner from the National Space Centre! The moon, like many celestial objects, is not the most inhabitable place for humans. This means there are challenges we need to overcome - where do we land? How long can we last there? And how can we protect ourselves from DEADLY magnetosphere radiation? 

Dan's answering your questions too, and this time they're all about animals! Find out what the most deadliest and longest living creatures are on planet Earth. Dangerous Dan warns us of a small sperm whale which can use its own poo to make an escape - yes, you heard that right - and we delve into some amazing science news. Did you know you can look at a 3D map of Mars? It's all here in this week's episode!