The tobacco industry's quest for a "safer" cigarette is filled with promise and pitfalls.
Investigate the brave new world of assisted reproduction.
Neuroscientist V.S. Ramachandran's intimate encounters with his patients reveal a novel picture of the brain.
What makes a person male or female? Can you be both? Explore the complex world of gender identity.
Go inside Russia's largest missile base, where soldiers still stand at the ready, awaiting orders to push the nuclear button
Explore germ warfare's chilling past, present, and future.
A sequel to one of the most popular NOVAs of all time, "Miracle of Life," this Emmy Award-winning program tracks human development from embryo to newborn using the extraordinary microimagery of Swedish photographer Lennart Nilsson.
NOVA examines the fascinating life cycle of the world's oldest living thing, a 4,600-year-old bristlecone pine in California's White Mountains.
The male bowerbird of Australia exhibits extraordinary courting antics.
Astronomers investigate gamma-ray bursts, the most powerful celestial explosions since the big bang.
Are Neanderthals our ancestors or an evolutionary dead end?
Pyrotechnists use hi-tech firing systems and ancient alchemy to create dazzling fireworks displays.
NOVA looks back to the 1940s, when American spies passed their country's deepest scientific secrets to the Soviets.
Paleontologists studying the Devonian Period (408-360 million years ago) discover a tiny fossil of colossal importance.
Beginning in 1915, Sir Ernest Shackleton and 27 men survive a year and a half lost in the Antarctic.
Can lessons learned from the Twin Towers' collapse make new buildings safer?
Forensic engineers investigate the collapse of the World Trade Center.
Wildland firefighters battle one of the most destructive fire seasons in U.S. history.
