Welcome aboard, space explorers! In this week's Science Weekly, Dan chats to author Vashti Hardy all about the ways we can be more sustainable for Christmas time with her amazing book, Santa's Marvellous Mechanical Workshop!
UK astronauts will be heading back into orbit! Tim Peake went up into space ten years ago, and finally four UK astronauts will be exploring the cosmos! Dan's figured out how light bulbs work and why we breath automatically, and we learn about a sword fighting bird in Dangerous Dan. En garde!