Every generation benefits from the insights and discoveries of the generations who came before. “If I have seen a little further it is by standing on the shoulders of giants,” …

If you believe the world’s leading physicists, the vast majority of matter in the universe is hiding in plain sight. For nearly a century, evidence has mounted that the gravitational …

In the future, a woman with a spinal cord injury could make a full recovery; a baby with a weak heart could pump his own blood. How close are we today to the bold promise of bionics—and could this technology be used to improve normal human functions, as well as to repair us?

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.

Progress in the last decade has established that black holes are real, but what about their time-reversed cousins, white holes? Renowned physicist and author Carlo Rovelli joins Brian Greene to …

Dark energy is cosmology’s biggest mystery—an anti-gravitational force that confounds the conventional laws of physics. It makes up more than two-thirds of the cosmos, but science is still grappling to explain what dark energy actually is.