For every cell in your body, there’s another tiny single-celled creature that also calls your body home. Far from being germs we should eradicate, these ancient friends allow us to …

Though many animals display cooperative behavior, human cooperation is distinct. Alan Alda hosts E.O. Wilson, Sarah Hrdy and other leading evolutionary biologists, anthropologists and humanitarians as they examine the origins and evolution of human cooperative behavior.

Richard Davidson, Karen Armstrong, and Kate Stockly, join Brian Greene to discuss the psychological and physiological impacts of sacred experiences, and how technology may make such experiences more readily available. …

In what many call a “golden age of cosmology”, astronomers can now observe the universe with unprecedented precision, resulting in spectacular progress in the search for the origin of the universe. Yet, for all the impressive progress, fundamental questions remain. What is the mysterious “dark energy” driving space to rapidly expand?

Does our intelligence, creativity, or consciousness make us unique? Brian Greene sits down with Nick Bostrom, author of Superintelligence and Deep Utopia, to explore how AI systems are already reshaping …

Looking millions of light-years into deep space requires a special kind of glass telescope. Prior to the 1980s telescopes were limited in size and too heavy to follow the motion …