PhysicsThe 50-year quest to create a quantum spin liquid may finally be over Creating quantum entanglement inside a solid material is tricky in the lab – but crystals buried in the earth could be growing it naturally. Now one scientist says he has proof he’s found them Features
CommentOur verdict on Red Mars: Mostly great, with a few quibbles The New ¾«¶«´«Ã½ Book Club read Kim Stanley Robinson's acclaimed science fiction story about the first settlers on Mars in April – and had a lot to say about it Culture