Future of medicine

A surgeon sits in a conference hall in Rome, gently moving his hands over a console; on the other side of the world, in a Beijing operating room he has never stepped into, robotic arms mirror his every motion inside a man’s body. The distance between them is more than 8,000 kilometers, yet for the …

For millions living with blindness, the idea of seeing again has long felt out of reach. Scientists are now inching closer to making that dream a reality. A recent study describes a retinal implant made of tellurium nanowires, a metallic material capable of converting light directly into electrical signals that the brain can understand. This …