Dan challenges Radzi Chinyanganya to a SCIENCE FACT OFF!!!

We're chatting to actual factual fact expert Radzi Chinyanganya all about his new book, Radzi's Incredible Facts! Radzi is here to chat about some of his favourite facts from the book, including why our brains are so amazing and how old you'll be when you've lived for a billion seconds! Buying a 31.7 birthday cake has never been so difficult...

A company has been FINED for leaving rubbish in space, we take a close look at a venomous underwater snake, and your questions are answered - this week, they're on how our stomachs digest food and what would happen if the Sun CRASHED into the Earth! 

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