How should we prepare for an ageing global population?

What are leap seconds, and why have we scrapped them?

‘A possible extinction event’: the UK’s worst bird flu outbreak

Why are children in the UK at risk of serious strep A infections?

Will Cop15 tackle the growing problem of invasive species?

‘Nothing is impossible’: the major breakthrough in nuclear fusion

What does Cop15’s buzzword ‘nature positive’ mean?

The science of how to give better gifts

Exploded heads and missing fingers: Dame Sue Black on her most memorable cases

Are we finally nearing a treatment for Alzheimer’s?