In BBC Inside Science, Dr Adam Rutherford and guests illuminate the mysteries and challenge the controversies behind the science that's changing our world.
As Spanish researchers unveil new stem cell research, Dr Adam Rutherford and Professor of Regenerative Medicine Fiona Watt look back at the history of stem cell research and what the future holds for regenerative medicine.
Last week's discussion on science practicals generated huge amounts of feedback. Some listeners consider school practicals the secret to their success, others remember nothing more than breaking test tubes and blowing things up. Professor Robin Millar researches the best ways to teach science practicals.
We unveil the mystery of the phantom head. This week's Show Us Your Instrument comes from Newcastle University's School of Dental Sciences.
In Newcastle, they're looking to sewage as a renewable alternative energy supply. It's flushed down the drains, but Northumbrian Water has taken a 'waste not want not' approach to our biological effluent. They are going to great efforts to recover energy from sewage and pump it back into the National Grid.
Listen to Inside Science
Tune in to BBC Radio 4 on Thursday 12 September at 16:30 to listen to this week's programme. More information and a link to listen again later will be available from the BBC's Inside Science pages.