Professor Witten is a leading light of superstring theory and the only physicist to have won the vaunted Fields Medal, mathematics’ highest honor. Known for advancing a number of novel approaches in mathematics and physics, Witten opened up new vistas in 1995 when he unified five seemingly competing superstring theories into M-theory, which seeks to unify Einstein’s general theory of relativity with quantum mechanics.

Astronomer Jill Tarter leads the charge to search for intelligent life on other planets by listening to clues from over 40 radio telescopes. Episode filmed live at the 2010 World …

Join Brian Greene and Britain’s Astronomer Royal Martin Rees as they discuss challenges and opportunities swirling around cosmology–the big bang, dark matter, dark energy, and black holes–and the future of …

A novel intelligence has roared into the mainstream, sparking euphoric excitement as well as abject fear. Explore the landscape of possible futures in a brave new world of thinking machines, …

Physicist and mathematician Brian Greene and journalist Faith Salie explore the past and future of the cosmos – from the big bang to the closest science can take us to the very end – …

A renowned AI pioneer explores humanity’s possible futures in a world populated with ever more sophisticated mechanical minds. This program is part of the Big Ideas series, supported by the …