Is our response to music hard-wired or culturally determined? Is the reaction to rhythm and melody universal or influenced by environment? John Schaefer, scientist Daniel Levitin, and musical artist Bobby McFerrin engage in live performances and cross-cultural demonstrations to illustrate music’s noteworthy interaction with the brain and our emotions.

A self-driving car has a split second to decide whether to turn into oncoming traffic or hit a child who has lost control of her bicycle. An autonomous drone needs to decide whether to risk the lives of busload of civilians or lose a long-sought terrorist. How does a machine make an ethical decision?

How fast is the universe expanding? Two prominent approaches are finding different answers, propelling cosmology toward a crisis. Wendy Freedman, a renowned astronomer who has spent decades seeking the expansion …

For all we understand about the universe, 96% of what’s out there still has scientists in the dark. Astronomical observations have established that familiar matter—atoms—accounts for only 4% of the weight of the cosmos. The rest—dark matter and dark energy—is invisible to our telescopes.

Fire tornadoes and color changing liquids are all part of what keeps Annopa Singh’s chemistry class engaged. Science teachers prepare tomorrow’s pioneering scientists. Episode filmed live at the 2017 World …

#YourDailyEquation with Brian Greene offers brief and breezy discussions of the most pivotal equations of the ages. Even if your math is a bit rusty, these accessible and exciting stories …