When no one is looking, a particle has near limitless potential: it can be nearly anywhere. But measure it, and the particle snaps to one position. How do subatomic objects shed their quantum weirdness?

Will Kinney joins Brian Greene to explore whether leading-edge cosmological theories can avoid a beginning to time. This program is part of the Big Ideas series, supported by the John …

Does God exist? Could our universe be a simulation? Watch WSF co-founder Brian Greene and evolutionary biologist Richard Dawkins, in a lively discussion on philosophical ideas of atheism, science and religion.

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.

In recent years, machines have grown increasingly capable of listening, communicating, and learning—transforming the way they collaborate with us, and significantly impacting our economy, health, and daily routines. Who, or what, are these thinking machines? As we teach them to become more sophisticated, how will they complement our lives?

Thirty-five years ago string theory took physics by storm, promising the coveted unified theory of nature’s forces that Einstein valiantly sought but never found. In the intervening decades, string theory …