Are we alone? It’s a question that has obsessed us for centuries, and now we have the technology to do more than wonder. Scientists on the hunt for distant planets and extraterrestrial intelligence explore faraway galaxies and barely visible realms.

Memory defines us. Memory is the basis of our sense of self. But how do the structures of the mind store memories? What changes do memories imprint on the brain? …

Search and rescue robots are able to go into places humans can’t and shouldn’t…this is the cool job of roboticist Edwin Olson who now makes autonomous shuttles. Episode filmed live …

What’s it like to face a faceless world? Acclaimed neurologist Oliver Sacks once apologized for almost bumping into a large bearded man, only to realize he was speaking to a mirror.

Winners of the prestigious 2010 Kavli Prizes—biennial international awards that recognize seminal advances in astrophysics, nanoscience and neuroscience, and include a cash prize of $1 million in each field— were …

Pioneering computer scientist and physicist Stephen Wolfram joins Brian Greene to discuss the interplay between physical law, computation, and artificial intelligence.