Sponsor message:

Sign up to receive the Arizona PBS Insider

Get up-to-the-minute information about your favorite programs and learn more about Arizona PBS news and events.

159 science documentaries you can watch right now (no membership required)

Nova Wonders "What's the Universe Made Of"

Is your brain is in desperate need of something enriching? Good news. We’ve got you covered. Below is a list of 161 of the best science documentaries and web series out there. All of these shows are available to watch right now without a membership.

'Nature' explores the wild on Wednesday nights

From the remarkable octopus to a river of dreams, experience compelling stories of the natural world as "Nature" returns to Arizona PBS Wednesday nights at 7 p.m.

Learn about the rise and fall of fascism in Europe

Travel writer Rick Steves traces fascism’s history from its roots in the turbulent aftermath of World War I, when masses of angry people rose up, to the rise of charismatic leaders who manipulated that anger, and the totalitarian societies they built.