New analysis of pollen grains and radiocarbon dating suggests that climate change played a major role in Ancient Egypt’s downfall. ByTim De Chant Tuesday, October 22, 2013 NOVA NextNOVA Next ...

The February storm left dozens of Texans dead and millions without power—and exposed an aging energy grid unprepared for a changing climate. Can we build something better? Ice and snow cover plants in ...

The size of a football field, the International Space Station hurtles around Earth at 17,000 mph, shielding its astronauts from the most hostile environment humans have ever endured. After 25 years of ...

About 40,000 years ago, near the dawn of the 30-millennia-long period known as the Upper Paleolithic, the first anatomically modern humans suddenly and mysteriously revolutionized their cultures with ...

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

This is a modified/interactive version of one of the neuro-behavioral tests that the climbers will be taking en route to the summit to measure their mental abilities. To find out about this and other ...

When the subject of alien abductions was first suggested as a possible NOVA, I was intrigued. As a long-time sci-fi buff and one open-minded to the notion of extraterrestrial intelligence, I could not ...

When I was born, the doctors couldn't tell my parents what I was: They couldn't tell if I was a boy or a girl. Between my legs they found "a rudimentary phallus" and "fused labio-scrotal folds." They ...

In this four-part special, technology columnist and best-selling author David Pogue takes a wild ride through the cutting-edge science that is powering a next wave of technological innovation. Pogue ...

Mighty, elemental forces molded North America—fiery eruptions, titanic floods, the grinding of great ice sheets, and massive impacts from space all shaped our homeland. The epic three-part series ...

Imagine a place where more than 280 people have defied Earth's gravity, risking their lives to do science 250 miles above us. Here, on the International Space Station, unexpected challenges are a ...

(This program is no longer available for online streaming.) He's been dead for more than 5,000 years and poked, prodded, and probed by scientists for the last 20. Yet í tzi the Iceman, the famous ...