It's a Saturday, and you know what that means! You're here to whizz around the solar system with Dan, and soon you could be in a reusable spacecraft! Our guest on the Science Weekly podcast this week is space expert Catherine Muller from the National Space Centre, here to chat all about the new Boeing Starliner! Hear about its development, what NASA plans to do with it, and what the future holds for climate friendly space travel. 

You wanted to know why you sneeze when you look at the sun and why onions make you cry, and be warned, there's a very stinky bird in Dangerous Dan...