How fast is the universe expanding? Two prominent approaches are finding different answers, propelling cosmology toward a crisis. Wendy Freedman, a renowned astronomer who has spent decades seeking the expansion …

The fear of death quietly shapes almost everything we do. At least that was the thesis Ernest Becker put forward in his Pulitzer Prize-winning book, The Denial of Death. But …

It’s the thought of your childhood home. It’s that comforting aroma you can still smell ten years later. It’s the way you define yourself. It’s your memory. Where is memory stored? How do we recall? Why do we forget?

In his research, U.K. Astronomer Royal Martin Rees has tackled topics as varied as the Big Bang, quasars, and more far-out ideas like the search for dark matter and the …

Invention and innovation are the mark of robotics engineer Dennis Hong’s lab. Watch as he demonstrates some of the remarkable robots that his team has built. The robots walk on …

Renowned computer scientist and virtual reality pioneer Jaron Lanier joins Brian Greene to explore revolutionary proposals for understanding, leveraging, and safeguarding AI. This program is part of the Big Ideas …