Building Chernobyl's MegaTomb
Engineers race to build a massive dome to contain the crumbling remains of the reactor.
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Building Chernobyl's MegaTomb
In 1986, in the heart of Ukraine, the Chernobyl nuclear reactor exploded, releasing 400 times more radiation than the Hiroshima Bomb. It was the world’s worst nuclear disaster. Thirty workers died, 50,000 people fled the nearest city, and radioactive fallout made an area larger than Long Island a no-go zone. Hastily, a so-called “sarcophagus” was built to contain the radioactive materials that lingered at the site after the explosion. But 30 years later, the sarcophagus is crumbling, and another disaster at Chernobyl looms. Now, an international team of engineers is racing the clock to assemble one of the most ambitious superstructures ever built—an extraordinary 40,000 ton, $1.5 billion dome to encase the crumbling remains of the Chernobyl nuclear reactor. Battling arctic winter weather—and lethal radiation—this is the inside story of the epic race to build Chernobyl’s MegaTomb.
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Sunken Ship Rescue
Follow the epic operation to secure, raise, and salvage the Costa Concordia cruise ship, which ran aground and tragically capsized off the coast of Italy on January 13, 2012, killing 32 people. The massive wreck—with a 160-foot-long hole in its hull—stretches the length of three football fields, weighs 45,000 tons, and was half submerged on the site of a protected reef. Moving it from its precarious perch on the edge of an underwater cliff turned into a technical and logistical challenge of staggering proportions. Join NOVA as we follow a team of more than 500 divers and engineers working around the clock as they attempt the biggest ship recovery project in history.
Sunken Ship Rescue
A team of 500 engineers and divers struggle to raise the Costa Concordia cruise ship.
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- 53:51
Why Trains Crash
From derailments to head-on collisions to drivers killed at road crossings, deadly train accidents claim dozens of lives each year. But just how unsafe are the railroads? NOVA investigates recent rail tragedies and advances in train tech that could help prevent them, taking a special look at Japan’s superefficient bullet trains, which have a perfect safety record. What would it take to usher in a new golden age of safer, faster, more modern and reliable train travel?
Why Trains Crash
Can new crash prevention technology help us avoid deadly train accidents?
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- 53:32
The Nuclear Option
Five years after the earthquake and tsunami that triggered the unprecedented trio of meltdowns at the Fukushima Daiichi nuclear power plant, scientists and engineers are struggling to control an ongoing crisis. What’s next for Fukushima? What’s next for Japan? And what’s next for a world that seems determined to jettison one of our most important carbon-free sources of energy? Despite the catastrophe—and the ongoing risks associated with nuclear—a new generation of nuclear power seems poised to emerge the ashes of Fukushima. NOVA investigates how the realities of climate change, the inherent limitations of renewable energy sources, and the optimism and enthusiasm of a new generation of nuclear engineers is looking for ways to reinvent nuclear technology, all while the most recent disaster is still being managed. What are the lessons learned from Fukushima? And with all of nuclear’s inherent dangers, how might it be possible to build a safe nuclear future?
The Nuclear Option
How will we power the planet without wrecking the climate?
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Search for the Super Battery
We live in an age when technological innovation seems to be limitlessly soaring. But for all the satisfying speed with which our gadgets have improved, many of them share a frustrating weakness: the batteries. Though they have improved in last century, batteries remain finicky, bulky, expensive, toxic, and maddeningly short-lived. The quest is on for a “super battery,” and the stakes in this hunt are much higher than the phone in your pocket. With climate change looming, electric cars and renewable energy sources like wind and solar power could hold keys to a greener future...if we can engineer the perfect battery. Join host David Pogue as he explores the hidden world of energy storage, from the power—and danger—of the lithium-ion batteries we use today, to the bold innovations that could one day charge our world.
Search for the Super Battery
Explore the hidden world of energy storage and how it holds the keys to a greener future.
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- 52:55
Ultimate Cruise Ship
Weighing 54,000 gross tons and stretching over two football fields, the Seven Seas Explorer is no ordinary boat. Join pioneering shipbuilders as they endeavor to build the ultimate cruise ship. It will be decked with the finest gold, marble, and crystal and designed to offer guests the roomiest accommodations of any commercial cruise ship. But engineering opulence is no easy feat. NOVA follows a pioneering team of ship builders as they embark on what is advertised to be a milestone in maritime engineering.
Ultimate Cruise Ship
Join pioneering shipbuilders as they embark on a feat of maritime engineering.
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Mystery of a Masterpiece
In October 2007, a striking portrait of a young woman in Renaissance dress made world news headlines. Originally sold nine years before for around $20,000, the portrait is now thought to be an undiscovered masterwork by Leonardo da Vinci worth more than $100 million. How did cutting-edge imaging analysis help tie the portrait to Leonardo? NOVA meets a new breed of experts who are approaching "cold case" art mysteries as if they were crime scenes, determined to discover "who committed the art." And it follows art sleuths as they deploy new techniques to combat the multibillion-dollar criminal market in stolen and fraudulent art.
Mystery of a Masterpiece
Art experts investigate whether a portrait sold for about $20,000 in 1998 is actually a lost Leonardo worth millions.
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Super Tunnel
Underneath the streets of London, a team of more than ten thousand construction workers race to build a brand new metro line—Crossrail. Costing almost $23 billion, it’s the biggest engineering project in Europe and must link into the existing metro system. As they burrow the 26 miles of tunnels, engineers battle to make sure historic buildings don’t crack, London Underground trains keep running, and an ambitious station roof made up of 2500 pieces comes together on time. Crucially, they must drive one of their gigantic 1000-ton tunnel boring machines through the earth, passing within inches of escalators and an active subway tunnel, without the passengers on the tube platforms below ever knowing they are there. Join NOVA to plunge into the tunnels of the London Underground and follow this high stakes, action packed engineering endeavor, and discover just how engineers are performing this delicate surgery through the heart of the historic city.
Super Tunnel
Join engineers as they build a massive new railway deep beneath the streets of London.
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Operation Lighthouse Rescue
On the picturesque bluffs at the very tip of the island of Martha’s Vineyard, disaster looms. The historic Gay Head Lighthouse is soon to become the next victim of the persistent erosion of the island’s cliffs. Built in 1856, the more than 400-ton structure soars 175 feet above the sea. But over the years, storms and the raging ocean have eroded the headland away. With fierce storms and hurricanes only intensifying as the global climate warms, this historic landmark is precipitously close to toppling into the ocean. Now, an epic rescue is underway as a team of engineers attempts to move the iconic red brick structure 134 feet inland to safety. As they race to save this national treasure, discover the geology they encounter, the archeology they discover, and technology they employ in this Lighthouse Rescue.
Operation Lighthouse Rescue
Join engineers as they race to rescue a historic lighthouse from certain doom.
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Arctic Ghost Ship
NOVA presents an exclusive breakthrough in the greatest unsolved mystery in Arctic exploration. In 1845, British explorer Sir John Franklin set off to chart the elusive Northwest Passage, commanding 128 men in two robust and well-stocked Royal Navy ships, the Erebus and Terror. They were never heard from again. Eventually, searchers found tantalising clues to their fate: a hastily written note left on an island, exhumed bodies suggesting lead poisoning, discarded human bones with marks of cannibalism and Inuit legends of ghost ships. But no trace of the ships was ever found. Then, in 2014, after seven years of searching, an official Parks Canada expedition finally located the Erebus, intact and upright on the sea floor. With exclusive access, NOVA tells the inside story of the risky Canadian expedition, which involved constant battles with crushing sea ice, bad weather, and disappointing dead ends. Culminating in the historic discovery of the Erebus, NOVA tells the gripping story of the ill-fated expedition and reveals exclusive new clues from the sea floor that may finally unravel what happened to Franklin’s men more than 160 years ago.
Arctic Ghost Ship
An astonishing find could solve the mystery of Sir John Franklin’s lost expedition.
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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.
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- 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?
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