To make sure everyone eats well in our crowded world, we need to innovate. Vertical farming systems, which grow plants intensively in an indoor setting, could be part of the answer—but to use them on a large scale we need to overcome key problems, especially …

Meta’s AI-powered Ray-Bans have a discreet camera on the front, for taking photos not just when you ask them to, but also when their AI features trigger

The film follows world-class rock climbers Alex Honnold and Tommy Caldwell on an epic expedition to tackle one of the most daunting challenges of their careers.