Neuroscientist and psychologist Michael Graziano puts forward a ground-breaking new theory of the origin of consciousness.
Though Tesla’s inventions transformed our world, his true originality is shown in the visionary ambitions he failed to achieve.
An anthropologist examines the nature of religiosity and how it shapes and benefits humankind.
Best-selling author and licensed mortician Caitlin Doughty answers real questions from children about death, dead bodies and decomposition.
Can we trust our senses to tell us the truth?