Journey to the centre of the Earth

5 Live Science Podcast - A podcast by BBC Radio 5 Live - Sundays

Dr Chris Smith and the Naked Scientist with science news, including what's happened to the UK Government's COVID-19 contact tracing app, the patient who can't see numbers and how humans really can talk to the animals. Plus a special journey to the centre of the Earth to find out what's really beneath our feet. Get the podcast from the BBC Sounds app.