 | Arctic Dinosaurs Experts in Alaska investigate how dinosaurs managed to thrive in polar regions. |
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 | Balloon Race Around the World Delve into the history and science of ballooning, and follow some of the attempts in the '90s to be the first to circumnavigate the globe. |
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 | NOVA scienceNOW: Booming Sands Scientists look into a generations-old conundrum: how and why do certain sand dunes produce mysterious noises? |
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 | Cracking the Ice Age Did the crash of continents that produced the Himalayan Mountains also trigger the Ice Age? |
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 | Deadly Shadow of Vesuvius The shattered remnants of the Roman city of Pompeii bear witness to the risk that the people of Naples still face today. |
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 | Descent Into the Ice A team of "glacionauts" ventures into a labyrinth of unexplored and hazardous glacier caves on France's Mt. Blanc. |
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 | Diamond Deception Makeshift labs in China and Russia are turning out synthetic gemstones that rival natural diamonds. |
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 | Dimming the Sun New evidence that air pollution has masked the full impact of global warming suggests the world may soon face a heightened climate crisis. |
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 | Everest Take a virtual climb of Mt. Everest through panoramic photography and explore the personalities, dangers, and history associated with the mountain. |
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 | Fire Wars Wildland firefighters battle one of the most destructive fire seasons in U.S. history. |
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 | Flood! The Great Flood of 1993 leaves a wake of destruction across the Midwest. Can rivers ever be contained? |
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 | Hawaii Born of Fire From their blistering beginnings as molten rock, the Hawiian islands have grown into a verdant paradise of unique lifeforms. |
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 | Hunt for the Supertwister Tornado-chasing scientists with an eye to better forecasting risk their lives to plumb the secrets of nature's most terrifying killer. |
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 | NOVA scienceNOW: Hurricanes Predicting a hurricane's intensity is notoriously difficult, but new tools may make it easier. |
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 | Into the Abyss A daring expedition attempts to retrieve several "black smoker chimneys" from the seafloor a mile and a half down. |
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 | Jewel of the Earth David Attenborough probes the mysteries of ancient life-forms perfectly preserved in amber. |
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 | Magnetic Storm Is the magnetic field protecting Earth from deadly radiation about to reverse direction or even disappear? |
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 | NOVA scienceNOW: Mass Extinction What caused the mother of all extinctions 250 million years ago? |
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 | Mountain of Ice Jon Krakauer and fellow mountaineers pioneer a new route on a scientific expedition up Antarctica's highest peak. |
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 | Mysterious Life of Caves Toxic caverns teeming with strange life-forms spark a radical theory of how caves take shape. |
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 | Mystery of the Megaflood What unleashed a catastrophic flood that scarred thousands of square miles in the American Northwest? |
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 | Mystery of the Megavolcano Researchers from Indonesia to Greenland unearth clues to the greatest volcanic eruption of the last 100,000 years. |
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 | Origins Journey back to the beginning of everything: the universe, Earth, and life itself. |
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 | Sinking City of Venice Experts struggle to save the City of Canals before it vanishes beneath the waves. |
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 | Storm That Drowned a City Experts and eyewitnesses reconstruct the devastating floods that Hurricane Katrina unleashed on New Orleans. |
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 | Tracking El Niño Scientists struggle to understand the El Niño phenomenon, second only to the seasons in its effect on global weather. |
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 | Volcano Above the Clouds Join a scientific expedition to the glacier-capped summit of Kilimanjaro, Africa's tallest mountain. |
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 | Volcano's Deadly Warning A man obsessed with understanding volcanoes comes up with a radical new way to predict eruptions. |
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 | Volcano Under the City A restless mountain threatens a bustling metropolis perched on its flanks. |
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 | Warnings from the Ice What does it mean that over the past half century, the coastal ice on the Antarctic Peninsula has been gradually disappearing? |
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 | Wave That Shook the World Experts reconstruct the 2004 Indian Ocean tsunami in an effort to prepare for the next big one. |
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 | What's Up with the Weather? FRONTLINE and NOVA take on a complex and critical phenomenon—global warming. |
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