We're limited by our senses. How can we define what "real" means?
Hank discusses some of the taboos which have plagued scientific inquiry in the past and a few that still exist today.
Matthew McConaughey takes viewers behind the scenes of Interstellar with a look at the real-life science that went into this out-of-this-world film.
Every 17 minutes in America, someone is killed with a gun. Politicians can't seem to stop the violence. But epidemiologists, psychologists and big data crunchers are discovering that gun crime spreads like a virus -and science may be able to stop its spread.
43m • 2017 • Through the Wormhole
Ever wonder how the heart symbol came to stand for the actual heart? And why do we speak of the heart as the seat of love, when love really happens in our brains? Is it true that animals only get a billion heartbeats? This week, we give you enough cool cardiac science to make your heart skip a beat.