Japanese knotweed: why is it so damaging and can it be stopped?

Six months to Cop28: will the most vital summit yet make meaningful progress?

Why are food allergies on the rise and is a cure on the horizon?

‘It’s taught me everything about living’: Rachel Clarke on delivering palliative care from the NHS to Ukraine

Why is Nasa looking into UFOs and what has it found so far?

Kakhovka dam destruction: why is Ukraine calling it ‘ecocide’?

Will new treatments change the way we view cancer for good?

Cybercrime: what does psychology have to do with phishing?

Synthetic human embryos: can the law keep pace with the science?

Why are orcas attacking boats and is the behaviour spreading?