What are mitochondria, and can we fix them?

Coming up: Africa's leading public health agency has warned that the Ebola outbreak could spread beyond the continent. What are the risks? Plus, we hear from the team behind an electronic implant with a catalytic converter to remove glucose from the blood; why Mars dust may pose ...  Show more

This week, Rachael Ralph investigates sugar. Perry Bateman from British Sugar tells her how white sugar and demerara differ; the British Dental Association's Mick Armstrong explains how a high-sugar diet leads to cavities; and Lucy Chambers at Diabetes UK looks at the long-term c ...  Show more

Today Dr Lucy and Dr Karl are joined by special guest astrophysicist Professor Geraint Lewis to answer all your questions from around the cosmos. Can you get moonburnt? Could we ever move at the speed of light? How did the big bang happen? What's on the other side of the universe ...  Show more

What's going on with microbes? What happens when an astronaut sneezes in space? Why do we have toes? Should I dress fancier? Why aren’t there drones on Mars? Do you get lighter every time you fart? What do I do about the poster I don’t understand? Why do animals live for differen ...  Show more

Dr Chris Smith and the Naked Scientists with science news, stories & analysis.