PBS NOVA Podcasts & Documentaries

Einstein's Dream: Eleven dimensions, parallel universes, and a world made out of strings. It's not science fiction, it's string theory.

This new documentary from the popular PBS science program NOVA examines many of the questions that cannabis poses as it has become legal to the majority of the American population.

It defines our lives, but what is time really? Have a look into its true nature.

Eleven dimensions, parallel universes and a world made out of strings. It's not science fiction, it's string theory.

We are on the verge of answering one of the greatest questions in history: Are we alone?

Trace human development from embryo to newborn through stunning microimagery.

A two-hour special from the producers of "Making Stuff"

Is our universe unique, or could it be just one in an endless "multiverse"?

Surprising clues indicate that space is very much something and not nothing.

As global temperatures continue to rise, scientists are wondering if we need solutions that go beyond reducing emissions.