PhysicsCould we jump into a wormhole to save us from the world at present? The chances that wormholes exist are slim, but that doesn't mean that they can't provide a useful escape, writes Chanda Prescod-WeinsteinComment
HealthWhat Hiroshima teaches us about coronavirus and the future of humanity The nuclear bomb told us we are the greatest threat to our own survival – and the covid-19 pandemic shows the lessons still to learn, say Anders Sandberg and Thomas MoynihanComment