Secrets of the Viking Sword
A modern-day swordsmith reverse engineers the ultimate weapon of the Middle Ages—a sword both prized and feared.
Search Results
Sort By:
- Video
- Format:
- Full Episode
- Running Time:
- 52:51
Secrets of the Viking Sword
The Vikings were among the fiercest warriors of all time. Yet only a select few carried the ultimate weapon of their era: the feared Ulfberht sword. Fashioned using a process that would remain unknown to the Vikings' rivals for centuries, the Ulfberht was a revolutionary high-tech tool as well as a work of art. Considered one of the greatest swords ever made, it remains a fearsome weapon more than a millennium after it last saw battle. But how did Viking sword makers design and build the Ulfberht, and what was its role in history? Now, NOVA uses cutting edge science and old-fashioned detective work to reconstruct the Ulfberht and finally unravel the "Secrets of the Viking Sword."
- Video
- Format:
- Full Episode
- Running Time:
- 52:52
Nuclear Meltdown Disaster
NOVA reveals the minute-by-minute story of the Fukushima nuclear crisis—the one you know about, and the one you likely don’t: the perilously close call at the other Fukushima nuclear power plant a few miles away from the meltdowns. With unprecedented access inside both Fukushima nuclear power plants, NOVA speaks with workers who were there during the harrowing days—a crisis that began as a natural a disaster but was made worse by human beings. But why did the worst happen at one plant while another that faced nearly identical challenges emerged unscathed? It may come down to the skill and knowledge of one man, who has worked there since they started construction. These are crucial questions as the company that runs both plants, TEPCO, tries to clean up an unprecedented radioactive mess and reintroduce nuclear power to Japan.
Nuclear Meltdown Disaster
Go inside the Fukushima power plants for the minute-by-minute story of what went wrong.
- Video
- Format:
- Full Episode
- Running Time:
- 53:02
Making North America
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 unfolds in a forgotten world that existed long before our own, crossed by long-lost mountain ranges, deserts the size of Africa, and vast inland seas spanning the length of the continent. Explore beloved landmarks like the Grand Canyon and Niagara Falls from the inside out as we witness the clash of nature’s creative and destructive forces. Hosted by renowned paleontologist Kirk Johnson, this spectacular road trip through a tumultuous deep past explores three fundamental questions: How was the continent built? How did life evolve here? And how has the continent shaped us? “Making North America” reveals the incredible story of a majestic continent.
Making North America
Host Kirk Johnson explores how the continent was shaped—and how it shaped us.
- Video
- Format:
- Full Episode
- Running Time:
- 53:37
Chasing Pluto
On July 14, 2015, the New Horizons spacecraft, one of the most advanced ever built, is scheduled to fly by Pluto to take the very first detailed images of the dwarf planet. After nine years and 3 billion miles, we will finally get a close look at this strange, icy world, but only if the craft can survive the final, treacherous leg of its journey, which could take it through a dangerous field of debris. If it does, New Horizons is poised to make dramatic new discoveries, not just about Pluto, but about the vast realm of icy bodies lurking beyond Neptune, relics of the earliest days of the solar system’s formation. Back on Earth, the planetary scientists who have spent decades working on this mission anxiously await a signal from their spacecraft. Our cameras will be there to witness the moment. If all goes well, we’ll see Pluto’s mysterious surface in unprecedented detail and learn new secrets about other alien worlds at the far limits of our solar system.
Chasing Pluto
Watch as the New Horizons spacecraft captures our first clear view of Pluto’s icy surface.
- Video
- Format:
- Full Episode
- Running Time:
- 53:07
Escape from Nazi Alcatraz
Colditz Castle, a notorious prisoner of war camp in Nazi Germany, was supposed to be escape-proof. But in the dark days at the end of World War II, a group of British officers dreamt up the ultimate escape plan: in a secret attic workshop, they constructed a two-man glider out of bed sheets and floorboards. Their plan was to fly to freedom from the roof of the castle, but the war ended before they could put it to the test. Now a crack team of aero engineers and carpenters rebuild the glider in the same attic using the same materials, and they'll do something the prisoners never got a chance to try: use a bathtub full of concrete to catapult the glider off the roof of the castle. As the hair-raising launch 90 feet up draws near, the program explores the Colditz legend and exposes the secrets of other ingenious and audacious escapes. Then, after a 70-year wait, the team finally finds out if the legendary glider plan would have succeeded.
Escape from Nazi Alcatraz
A crack team rebuilds a glider that POWs hoped to catapult off the top of Colditz Castle.
- Video
- Format:
- Full Episode
- Running Time:
- 53:10
Lethal Seas
A deadly recipe is brewing that threatens the survival of countless creatures throughout Earth’s oceans. For years, we’ve known that the oceans absorb about a quarter of the carbon dioxide in our atmosphere. But with high carbon emissions worldwide, this silent killer is entering our seas at a staggering rate, raising the ocean’s acidity. It’s eating away at the skeletons and shells of marine creatures that are the foundation of the web of life. NOVA follows the scientists making breakthrough discoveries and seeking solutions. Visit a unique coral garden in Papua New Guinea that offers a glimpse of what the seas could be like a half-century from now. Can our experts crack the code of a rapidly changing ocean before it’s too late?
Lethal Seas
A unique coral garden in Papua New Guinea shows what the future may hold as oceans acidify.
- Video
- Format:
- Full Episode
- Running Time:
- 53:07
Manhunt—Boston Bombers
At 2:50 pm on April 15, 2013, two bomb blasts turned the Boston Marathon finish line from a scene of triumph to tragedy, leaving three dead, hundreds injured, and a city gripped by heartbreak and terror. Less than five days later, the key suspects were identified and apprehended with one dead, the other in custody. How did investigators transform the chaos of the bombing into a coherent trail of clues, pointing to the accused killers? NOVA follows the manhunt step by step, examining the role modern technology—combined with old-fashioned detective work—played in cracking the case. Given hundreds of hours of surveillance and bystander videos, how did agents spot the suspects in a sea of spectators? Why couldn't facial recognition software I.D. the criminals? How much could bomb chemistry analysis, cell phone GPS, infrared imagery, and crowdsourcing reveal about the secrets behind this horrific crime? With the help of top criminal investigators and anti-terrorism experts, NOVA explores which technological innovations worked—and which didn't—and how the world of crime fighting could be transformed tomorrow.
Manhunt—Boston Bombers
Which technologies worked—and which didn't—in the race to track down the men behind the marathon attack?
- Video
- Format:
- Full Episode
- Running Time:
- 53:37
Invisible Universe Revealed
Twenty-five years ago, NASA launched one of the most ambitious experiments in the history of astronomy: the Hubble Space Telescope. In honor of Hubble's landmark anniversary, NOVA tells the remarkable story of the telescope that forever changed our understanding of the cosmos. But Hubble's early days nearly doomed it to failure: a one-millimeter engineering blunder had turned the billion-dollar telescope into an object of ridicule. It fell to five heroic astronauts in a daring mission to return Hubble to the cutting edge of science. This single telescope has helped astronomers pinpoint the age of the universe, revealed the birthplace of stars and planets, advanced our understanding of dark energy and cosmic expansion, and uncovered black holes lurking at the heart of galaxies. Join NOVA for the story of this magnificent machine and its astonishing discoveries.
Invisible Universe Revealed
Follow the historic rescue of Hubble—the space telescope that unveiled the cosmos.
- Video
- Format:
- Full Episode
- Running Time:
- 52:52
Emperor's Ghost Army
In central China, a vast underground mausoleum conceals a life-size terracotta army of cavalry, infantry, horses, chariots, weapons, administrators, acrobats, and musicians, all built to serve China's first emperor, Qin Shi Huang Di, in the afterlife. Lost and forgotten for over 2,200 years, this clay army, 8,000-strong, stands poised to help the First Emperor rule again beyond the grave. Now, a new archaeological campaign is probing the thousands of figures entombed in the mausoleum. With exclusive access to pioneering research, "Emperor's Ghost Army" explores how the Emperor directed the manufacture of the tens of thousands of bronze weapons carried by the clay soldiers. NOVA tests the power of these weapons with high-action experiments and reports on revolutionary 3D computer modeling techniques that are providing new insights into how the clay figures were made, revealing in the process the secrets of one of archaeology's greatest discoveries.
Emperor's Ghost Army
Explore the buried clay warriors, chariots, and bronze weapons of China's first emperor.
- Video
- Format:
- Full Episode
- Running Time:
- 53:07
Alien Planets Revealed
It's a golden age for planet hunters: NASA's Kepler mission has identified more than 3,500 potential planets orbiting stars beyond our Sun. Some of them, like a planet called Kepler-22b, might even be able to harbor life. How did we come upon this distant planet? Combining startling animation with input from expert astrophysicists and astrobiologists, "Alien Planets Revealed" takes viewers on a journey along with the Kepler telescope. How does the telescope look for planets? How many of these planets are like our Earth? Will any of these planets be suitable for life as we know it? Bringing the creative power of veteran animators together with the latest discoveries in planet-hunting, "Alien Planets Revealed" shows the successes of the Kepler mission, taking us to planets beyond our solar system and providing a glimpse of creatures we might one day encounter.
Alien Planets Revealed
Are we alone—and if not, what might the inhabitants of far-flung worlds look like?
- Video
- Format:
- Full Episode
- Running Time:
- 1:51:29
The Bible's Buried Secrets
In this landmark two-hour special, NOVA takes viewers on a scientific journey that began 3,000 years ago and continues today. The film presents the latest archeological scholarship from the Holy Land to explore the beginnings of modern religion and the origins of the Hebrew Bible, also known as the Old Testament. This archeological detective story tackles some of the biggest questions in biblical studies: Where did the ancient Israelites come from? Who wrote the Bible, when, and why? How did the worship of one God—the foundation of modern Judaism, Christianity, and Islam—emerge?
The Bible's Buried Secrets
An archeological detective story traces the origins of the Hebrew Bible.
- Video
- Format:
- Full Episode
- Running Time:
- 53:09
Hagia Sophia: Istanbul's Mystery
Whether serving as Christian church, Islamic mosque, or secular museum, Hagia Sophia and its soaring dome have inspired reverence and awe. For 800 years, it was the largest enclosed building in the world—the Statue of Liberty can fit beneath its dome with room to spare. How has it survived its location on one of the world's most active seismic faults, which has inflicted a dozen devastating earthquakes since it was built in 537? As Istanbul braces for the next big quake, a team of architects and engineers is urgently investigating Hagia Sophia's seismic secrets. Follow engineers as they build a massive 8-ton model of the building's core structure, place it on a motorized shake table, and hit it with a series of simulated quakes, pushing it collapse—a fate that the team is determined to avoid with the real building.
Hagia Sophia: Istanbul's Mystery
How has this unique structure, built on a seismic fault, survived centuries of quakes?
Narrow Results
Add filters to refine your search
Format
NOVA Topics
- Ancient Worlds (20)
- Body & Brain (14)
- Evolution (8)
- Military & Espionage (15)
- Nature (8)
- Physics & Math (17)
- Planet Earth (29)
- Space & Flight (11)
- Tech & Engineering (25)
Subjects
- Anthropology (10)
- Archeology (9)
- Earth Science (19)
- Engineering (23)
- Environmental Science (14)
- Forensic Science (3)
- Geography (3)
- Health Science (15)
- History (21)
- Life Science (17)
- Math (1)
- Physical Science (19)
- Science & Society (32)
- Space Science (13)
- Technology (29)
Media Type
- Video (147)
Year
Haven't found what you're looking for on NOVA? Search all
