Tubeworms live beneath the planetary crust around deep-sea vents

The conditions are hot, sulphurous and low in oxygen

Could you pass the British citizenship test?

If you’re a native-born Briton, almost certainly not

Blighty newsletter: Three takeaways from an interview with Sir Keir Starmer

Sir Keir Starmer’s elevator pitch for investment

In an interview with The Economist, the prime minister sets out his stall