What is time? Isaac Newton described it as absolute, but Einstein proved that time is relative, and, shockingly, that time and space are intricately interwoven. Now recent work in string theory and quantum gravity suggests that space and time may not be fundamental. If this is true, what new picture of reality will emerge?

When listing clean renewable energy sources, solar, wind, and geothermal come to mind. But thanks to new reactor technologies, there’s a transformation afoot.

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.

Biomedical and forensic anthropologist Angelique Corthals travels the world uncovering 3,000 year old fossils and more in her exciting job to unearth mysteries of mummies. Episode filmed live at the …

Leading researchers join Brian Greene to explore how AI is pushing mind reading technologies rapidly forward. This program is part of the Big Ideas series, supported by the John Templeton …

One of the strangest features of quantum mechanics is also potentially its most useful: entanglement. By harnessing the ability for two particles to be intimately intertwined across great distances, researchers …