Dr Chris Smith and the Naked Scientist team present the latest science news, analysis and breakthroughs. In today’s programme: is paying people to switch off their electricity the right strategy? We hear about bacteria that can eat ocean plastic. And find out more about the spiders that can grow back their limbs! Plus we find out if an AI chatbot is any good as a broadcaster.

Dr Chris Smith and the Naked Scientist team present the latest science news, analysis and breakthroughs. In this week's programme: How hair follicles might hold the key to reversing scars, but not just in skin: in hearts and other organs too; scientists crack how to grow new brain cells in the laboratory dish; and what a mutant from millions of years ago is revealing about how ancient animals mated. As many of us are taking part in Dry January, we look at the history of booze.

Dr Chris Smith and the Naked Scientist team present the latest science news, analysis and breakthroughs. This week we discover a breakthrough in treating type 2 diabetes, and find out why the Virgin Orbital launch failed earlier this week Plus, we look at microplastics and the oceans at large as we go aboard the ocean research vessel the RRS Sir David Attenborough, which could have originally been named 'Boaty McBoatface', as they prepare to set sail for the Antarctic. And we discover how the Boaty McBoatface name lives on through one of the research submarines that is deployed on board the ship.

Dr Chris Smith and a panel of experts answer your science questions for the New Year, including: how starts burn for millions of years? How do you create a nation of mathematicians? And how can misinformation change the shapes of our brains?

This week, we bring you the best of 5 Live Science from the year just gone, including the James Webb Space Telescope, clocks so accurate they can tell the time difference between your head and your feet, and science proves that teenagers tune out to their parents' voices!