PBS (DIRECT)

Nova: Making North America DVD

Virtually every animal sleeps. But why? Why do we need to spend nearly a third of our lives in such a defenseless state? Scientists are peering more deeply into the sleeping brain than ever before,...

This revealing documentary explores the effects predators have on an ecosystem using African Wild Dogs in the Gorongosa National Park. Directed by David Murdock. 2020/color/57 min/TV-PG/widescreen.

One of the world's greatest ancient enigmas, the Nazca lines are a dense network of criss-crossinglines, geometric shapes, and animal figures etched across 200 square miles of Peruvian desert. Who...

In July 2022, NASA's James Webb Space Telescope released it's first images, looking further back in time than ever before to show our universe in stunningly beautiful detail. But that was just the...

What's the most common?yet most elusive and least understood-particle in the universe? The neutrino. Starting with the invention of the nuclear bomb, billions of dollars have been spent in pursuit of...

Women make up less than a quarter of STEM professionals in the United States, and numbers are even lower for women of color. But a growing group of researchers is exposing longstanding discrimination...

The four planets closest to the sun, called the rocky planets, were born from the same material in the same era. Only on Earth do we find the unique conditions for life as we know it. But why only...

The four planets closest to the sun, called the rocky planets, were born from the same material in the same era. Only on Earth do we find the unique conditions for life as we know it. But why only...

The New Horizons spacecraft, 4 billion miles from Earth, attempts to fly by a mysterious object known as Ultima Thule and achieve the most distant flyby in NASA's history. NOVA is embedded with the...

Renowned paleontologist Kirk Johnson takes us on an epic adventure through time at the polar extremes of our planet. Following a trail of fossils found in all the wrong places beech trees in...

NOVA: Prediction by the Numbers Predictions underlie nearly every aspect of our lives, from sports, politics, and medical decisions to the morning commute. With the explosion of digital technology,...