Alan Alda has issued this year’s challenge to the world’s top scientists: What is sound? In an action-packed hour of interactive demonstrations, Alan and a team of communication experts invite the audience to explore what we hear, how we hear, and what that means for different species.

Dive into the deepest quantum mystery: how do we transition from a haze of possibilities to the concrete reality we experience? Does the answer require a profusion of universes, each …

Elaine Fuchs pioneered the field of reverse genetics—studying proteins and learning what they do, and how they do it, in order to identify the genetic disease they cause when they …

For the last half century we have slipped the surly bonds of earth with landers, rovers and spacecraft that have allowed us to touch the very edge of the Solar …

Congratulations to Shep Doeleman and the Event Horizon Telescope team, winners of the 2020 Breakthrough Prize in Fundamental Physics! At the 2019 World Science Festival, Shep presented the methods used …

Pills the size of molecules to seek and destroy tumors. Miniscule robots performing surgery inside patients with a precision never before achieved. Nanobots, a billionth of a meter across, fixing mutations in DNA, or repairing neurons in your brain. Such are the possibilities as medicine enters the nano-era.