A tribute to the great theoretical physicist, who has passed away aged 94.

Plus, a bluetooth pancreas that could change thousands of lives

The fight to keep our food and save our planet

Plus, the special vision behind virtuoso sporting performance...

New synthetic opioids, many times stronger than heroin, have appeared in the UK illicit supply...

Plus, a fascinating feat of animal memory

The costs of Alzheimer's, and the hope for future treatments

Plus, using CRISPR to fight HIV...

How can we deal with the potential expansion of tick populations?

Plus, we look back on the life of Paul Alexander, who lived inside an iron lung for 70 years...