Current and upcoming Smithsonian Channel HD listings in UTC.
See the Smithsonian Channel HD TV Schedule with current and upcoming listings including Air Disasters, Aerial America, Ice Airport Alaska. Times shown in.
Deadly Distraction
Delta Air Lines Flight 1141 crashes beyond the runway while taking off from Dallas/Fort Worth International Airport.
Taxiway Turmoil
Experts examine a departing DC-9 in Detroit which gets lost in the fog and ends up in the path of an oncoming 727.
Concorde: Up in Flames
On 25 July 2000, a Concorde operating as Air France Flight 4590 stalled and crashed into a hotel in Gonesse shortly after takeoff from Charles de Gaulle Airport, killing all the 109 people on board and 4 on the ground.
Missing Pieces
Following three air crash investigations in which examiners are pushed to the limit to crack the cases.
Oregon
Oregon's Cascade Mountains; Columbia River waterway.
Boston 24
A day-long aerial tour of the New England city of Boston in Massachusetts; where Americans first rebelled against Britain by dumping chests of tea into the harbor and where rock band Aerosmith first made it big.
Alaska's Call of the Wild
A look at America's landmarks, including a view of bears catching clams in Alaska's rivers; a high-flying tour reveals Alaska's call of the wild spirit that has lured adventurers and dreamers north for centuries.
Coasts
An aerial tour over America's coastlines explores the visual splendor and rich history of the nation's varied borders.
Utah
An amazing aerial tour over Utah reveals a state full of otherworldly landscapes and landmarks, including a history steeped in Mormonism, pioneering tragedy, and Olympic glory.
On the Water
Taking flight for a bird's eye tour of America's rivers, lakes and canals.
Natural Wonders
America's most remarkable natural wonders are explored including the Grand Canyon, the Great Lakes and more.
Connecticut
A high-flying tour of Connecticut; exploring the safe harbors, buildings and rich maritime history; the home state of Mark Twain, PT Barnum and Katharine Hepburn; the exclusive Gold Coast, the Thimble Islands and the historic cities.
Tennessee
From battlefields where hundreds died to Beale Street where musical legends were born.
Arkansas
An aerial view of Arkansas, where settlers' westward journeys began and the scene of Bonnie and Clyde's most serious crime; a view of the land of raging rivers, vast wilderness and legends of the Wild West.
North Carolina
The Wright Brothers gave the state its slogan "First in Flight"; civil rights leaders in Greensboro; NASCAR.
Louisiana
Louisiana's wetlands and underwater oil fields.
New Mexico
An aerial view of New Mexico; exploring its landscapes and landmarks, while revealing its many legends and secrets.
To The Ends Of The Earth
Pilots fly over the dangerous Brooks Mountains, so engineers can fix a remote weather station; a veteran pilot tests a rookie on their bush plane landings; crews fight ice and wind to save a winter festival; engineers race to repair a 737.
Live And Let Fly
A lone bush pilot races to stock ultra-marathon checkpoints, a heli pilot risks a sling-load at 4,000 feet and comes inches from disaster, and a vintage DC-3 plane is a village's only lifeline as a storm closes in.
Lava Wars
In Grindavik, Iceland, crews repair earthquake fissures, build lava barriers and track magma, gases and ground movement while divers inspect a damaged harbor pier in a town shaped by ongoing eruptions.
Live And Let Fly
A lone bush pilot races to stock ultra-marathon checkpoints, a heli pilot risks a sling-load at 4,000 feet and comes inches from disaster, and a vintage DC-3 plane is a village's only lifeline as a storm closes in.
Lava Wars
In Grindavik, Iceland, crews repair earthquake fissures, build lava barriers and track magma, gases and ground movement while divers inspect a damaged harbor pier in a town shaped by ongoing eruptions.
Live And Let Fly
A lone bush pilot races to stock ultra-marathon checkpoints, a heli pilot risks a sling-load at 4,000 feet and comes inches from disaster, and a vintage DC-3 plane is a village's only lifeline as a storm closes in.
Running on Empty
Air Tahoma Flight 185, an overnight cargo flight from Memphis, Tenn., approaches its final destination, Cincinnati.
Power Struggle
In Indonesia, a Boeing 737 spirals out of the sky and nosedives into the Java Sea.
Second Thoughts
The turboprop plane begins its descent in thick fog, but things go wrong; Luxair Flight 9642 crashes a few kilometers from the runway; investigators discover that there was nothing abnormal about the two engines.
Powerless Plunge
Just moments after takeoff, a Loganair cargo flight from Edinburgh loses both engines and crashes into the icy North Sea.
Cabin Chaos
After a Chinese airplane lands at a top-secret US Air Force base, the search is on for the cause of a deadly rollercoaster ride in the sky.
Deadly Climb
In 1985, a DC-9 airliner crashes seconds after takeoff from Milwaukee.
Firebomber Down
A C-130 firebomber crashes while battling an epic Australian wildfire; ATSB investigators must determine the cause within an active fire zone.
Collision Catastrophe
Two planes collide in the sky above southern Germany and numerous people on the ground witness the disaster; based on the wreckage, it is clear that the planes collided in the air; the researchers encounter a mystery.
Pacific Ditching
Just after takeoff from Honolulu, TransAir Flight 810 loses power and ditches in the Pacific; both pilots survive, blaming dual engine failure-but when the Boeing 737 is recovered, the wreckage reveals a different cause.
Fatal Test Flight
On Dec. 22, 1996, Airborne Express Flight 827 crashes into mountainous terrain near Narrows, Va., during a functional evaluation flight, killing all six occupants; the investigation finds that the pilots made improper flight control inputs.
Power Play
When a turboprop loses engine power and crashes in Papua New Guinea, investigators discover a fatal defect existing in Dash 8s around the world.
Mystery Over the Mediterranean
When an Airbus crashes into the Mediterranean Sea, Egyptian authorities, French investigators and an Italian journalist theorize different causes for the accident.
Dead of Winter
An investigation into Continental Airlines Flight 1713, which crashed on takeoff from Denver during a snowstorm in 1987, changes commercial flight forever.
Deadly Descent
When an airbus A330 loses both engines, its pilots must think of a solution before they crash into the South China Sea.
Deadly Detail
After a seemingly routine landing, a Boeing 737 erupts in flames, putting 165 debarking passengers and crew in jeopardy.
Snowbird Ski Resort
Mike Davidson embarks with the team to one of the most extreme, avalanche-prone ski mountains in the world: Snowbird; they battle to keep the steep and deep slopes safe with shovels, snowcats and even a WWII Howitzer.
Extreme Heights: Rope Access Repairs
Mike pushes himself to the limit to work with an elite team of high ropes techs on fixes hundreds of feet in the air; starting 45 stories up on the side of a skyscraper, then working and dangling on the edge.
Philadelphia Transit
In Philadelphia, Mike is on streets, in tunnels, on tracks and in trolley restoration garages; he is working shoulder-to-shoulder with the team that keeps one of America's largest and oldest mass transit systems running smoothly and on time.
Water Bombers: Fixing Aerial Firefighters
With wildfire season ahead, Mike works with an aerial firefighting company as they fix and convert aircraft into firefighting machines, including the transformation of a 1960's C130 plane from aged military aircraft into a stateofthe art waterbomber.
Iter
At ITER in southern France, teams move massive reactor components, repair a leaking cryostat and test giant robotic arms as they build the world's largest fusion experiment with extraordinary precision.
Deep Space Telescope
Host Mike Davidson goes to the remote Atacama Desert in Chile; at observatory ALMA he works alongside the expert team as they repair some of the world's biggest antennas.
Iter
At ITER in southern France, teams move massive reactor components, repair a leaking cryostat and test giant robotic arms as they build the world's largest fusion experiment with extraordinary precision.
Live And Let Fly
A lone bush pilot races to stock ultra-marathon checkpoints, a heli pilot risks a sling-load at 4,000 feet and comes inches from disaster, and a vintage DC-3 plane is a village's only lifeline as a storm closes in.
Free Fall
A computer glitch causes a highly automated Qantas Airways flight to nearly fall out of the sky; Australian investigators must find the cause before it happens again.
Sabotage
From delusional hijackers to suicidal pilots, three flights fall victim to astonishing acts of sabotage.
Deadly Mission
A new investigation sheds light on the controversial 1961 plane crash that killed U.N. Secretary-General Dag Hammarskjöld.
What Happened To Malaysian 370?
Leading aviation experts are confronted with a shocking theory as they investigate one of the greatest aviation mysteries of all time.
Fatal Flaw
A look at several air disasters that involved small components that failed; accidents caused by minor defects or errors; how the follow-up investigations led to changes that have made flying safer.
Massacre Over the Mediterranean
On June 27, 1980, Aerolinee Itavia Flight 870 crashed into the Tyrrhenian Sea near the island of Ustica, Italy; all 81 people on board were killed.
Ocean Endeavor
Cruise among the icebergs of Greenland and the Canadian High Arctic aboard the expedition cruiser Ocean Endeavour.
Viking Star
We follow passengers and crew aboard Viking Star during its two-week tour from Barcelona to its home port in Bergen, Norway.
Roald Amundsen
The world's latest, most-advanced expedition cruise ship Roald Amundsen whisks passengers on an adventurous voyage to Antarctica.
Koningsdam
Set a course for breathtaking sights on Koningsdam's 15-day voyage from Amsterdam to the northern tip of Norway.
Viking Long Ship Gefjon
Take a river tour through some of Europe's greatest cities--Budapest, Vienna, and Amsterdam--on Viking Longship Gefjon.
Paul Gauguin
The Paul Gauguin offers five-star luxury while sailing near the coral reefs, mountainous islands and tropical playgrounds of French Polynesia.
Hector Rail
Hector Rail's trains haul timber to a pulp mill in Ostrand, Sweden on some of the most difficult railways in the country.
Tren Turistico
A trip through Lima details the voyage's breathtaking scenery and engineering challenges.
The Canadian
VIA Rail's passenger train travels between Vancouver and Toronto on four-day, four-night journey that cater to everyone.
Norwegian Breakaway: The Build
Follow the building of the Norwegian Breakaway at Germany's Meyer Werft shipyard; it is the largest ship they've ever built, and they have only 18 months to finish it.
Fram
The world's most adventurous cruise ship, MS Fram, battles ice-choked fjords of Greenland to visit wildlife and icebergs.
Oasis of the Seas
The maiden voyage of the Oasis of the Seas, the largest, most revolutionary cruise ship in the world.
Le Soléal
New luxury liner Le Soleal navigates the uncharted waters of Indonesia to give her passengers one-of-a-kind encounters at exotic destinations.
MSC Divina
Experience romance on a mega cruiser that pampers its guests with the best of Italian design and American convenience.
Orbis
The ORBIS McDonnell Douglas DC-10, the world's only flying eye-hospital, includes an operating room and a classroom.
Thai Rail & Death Railway
Travel aboard the colorful trains of the State Railway of Thailand and explore the famed Death Railway; the trains travel through ancient areas, historic tunnels, and raging rivers.
Diamond Princess
Japan's largest cruise ship brings East and West together on a cruise featuring cherry.
Sky Princess
The Sky Princess carries passengers from Fort Lauderdale, Florida, to three Central American stops.
North Rail Express
The highly-specialized North Rail Express container train travels from Narvik to Oslo, delivering cargo of fish as quickly as possible.
Kiwi Rail
Two magnificent journeys with New Zealand's KiwiRail: the TranzAlpine, a five-hour journey across 223 kilometers, and Northern Explorer, an 11-hour trip through five unique regions of the North Island.
Viking Sea
The new Viking Sea cruise ship whisks guests away on a journey across the Arctic Circle and into the heart of Norway.
Carnival Vista
The Carnival Vista is the new flagship for one of the world's largest cruise lines, carrying more than 4,600 passengers and boasting 10 restaurants, nearly 2,000 staterooms and a crew of 1,400.
Celebrity Solstice
Facing Australia's fierce heat, Celebrity Solstice provides guests with views of waterfalls, jumping crocodiles, koalas and the Great Barrier Reef.
Norwegian Joy
Norwegian Joy sails amid icebergs in Alaska's Inside Passage, treating guests to glaciers, humpback whales, and the largest zip line in the world.
Tunnels & Towers
In Chicago, twin concrete towers push the limits of high-rise design. Engineers conquer the sea to unite Sweden and Denmark. And in Sydney, Norman Foster and team take on the challenge of a new metro station that can't disrupt the busy streets above.
Facelifts & Scaffolds
A museum building bends 1,100-glass tubes to form a facade and tunnels below the water table; a vast 11-storey glass atrium HQ is built on the former Berlin Wall site to represent unity.
 Summit & Submerge
Building an eco-friendly visitor center in the permafrost on Colorado's Pikes Peak tests the team. A museum is constructed in a disused dry dock that's in danger of collapse.
Curved & Cables
A new performance center with a tent-like glass-and-steel lobby tests engineers in Kansas City; two twisting apartment towers make heads spin in Ontario.
Mirrors & Marble
Visiting Australia's One Central Park, the Oslo Opera House and the California Academy of Sciences in San Francisco to reveal their architectural secrets.
Canyons & Curves
Engineers grapple with an apartment building, ripped apart by a man-made canyon; the Gateway Arch takes shape in St. Louis; an unpromising plot in Copenhagen, Denmark, is transformed by a gleaming new triangular office.
Space Stations and Super
Celebrating one of humanities biggest engineering achievements, the International Space Station, a meteor proof lab bigger than a football field, constructed by astronauts traveling 250 miles above us at 17,500 miles an hour.
Floating Parks & Upcycled Towers
On inadequate foundations, San Francisco's MoMA triples in size creating an exterior light enough to prevent collapse; a 1970s Sydney skyscraper is recycled into a 21st century tower; in Dallas, a five-acre park is created.
Super Stallion Helicopter
Mike joins the U.S. Marines' Heavy Haulers helicopter squadron and gets inside their battle to keep a fleet of souped-up Sikorsky CH-53E Super Stallion choppers flying as they prepare for intense war games in the desert and mountains.
Panama Canal Railway
A ride on the Panama Canal Railway reveals the track repairs, engine overhauls and dangerous searches involved in keeping vital freight runs rolling.
Heli-Logger
A crew and its massive air crane helicopter haul millions of pounds of timber while battling the elements and handling emergency repairs.
Volcano Power
Mike is in Iceland, where teams harness the power of volcanos to keep the geothermal energy flowing; they battle harsh weather to maintain and upgrade giant power systems, fixing miles of steam pipes, and bringing a dead well back to life.
Water Work
In Florida, Mike tackles one of the dangerous jobs on the planet, commercial diving; he helps a specialized team keep waterways safe; fixing construction site leaks and removing dangerous structures, all while hurricane season is in full swing.
Sky Rides
In the Alps of Switzerland, Mike helps an elite team install a new cable (rope) system on an iconic mountain gondola line, helps fix the world's steepest cogwheel railway track and explores mountaintop family farms only accessible.
Iter
At ITER in southern France, teams move massive reactor components, repair a leaking cryostat and test giant robotic arms as they build the world's largest fusion experiment with extraordinary precision.
Live And Let Fly
A lone bush pilot races to stock ultra-marathon checkpoints, a heli pilot risks a sling-load at 4,000 feet and comes inches from disaster, and a vintage DC-3 plane is a village's only lifeline as a storm closes in.
Dangerous Approach
A Colorado commuter flight crashes five miles short of the runway and the reasons why rock the airline industry.
River Runway
Pilots attempt to land their Boeing 737 in an Indonesian river after losing their engines and electrical power.
Disaster at Tenerife
Two 747s collide on the runway of a small airport in the Canary Islands, resulting in history's deadliest air crash.
Miracle Escape
Passengers and crew escape a jet that skid off the runway before catching fire.
Getting Out Alive
Air accident survival stories; keeping passengers and crews alive when disaster strikes.
Cockpit Killer
When an African airliner mysteriously crashes, Namibian investigators have to rule out a host of possible causes before reaching a conclusion.
Design Flaws
When former race car driver Niki Lauda's planes nosedives into a Thai jungle, a one-in-a-million failure reveals a weak spot in every Boeing 767; radio silence between pilots and air traffic controllers send investigators hunting for answers.
Blow Out
A cockpit window on British Airways Flight blows out, partially ejecting and injuring the captain; the co-pilot completes an emergency landing.
Torpedo Boats
From tests in the River Thames, to the German's deadly U-boat attacks in World War II, this episode explores the silent threat of submarines.
Secrets of the Sea
Stories of espionage at sea, including deadly U-boat cat-and-mouse games during WWI, the sinking of the Lusitania, a gun-smuggling private yacht that made history, and liners turned troopships.
The Battle of Trafalgar
The legendary Battle of Trafalgar in 1805, which pitted Napoleon's French ships against a British armada under the command of Admiral Horatio Nelson.
Secrets and Lies
A look at how the art of deception was used by naval forces in the first half of the 20th century; in 1939, the German raider Atlantis was equipped with fake funnels, while its sailors dressed as women pushing strollers to fool Allied merchant ships.
Galleons and Privateers
Revolutionary ship design helped Sir John Hawkins and Sir Francis Drake lead England to defeat the Spanish Armada and become a world power.
The Fast and Furious
A look at Naval warfare's fastest combat ships and how the advantage of speed determined the outcome of some of the great seas battles of the last 150 years.
Doomed Vessels
Bad design, human error and the enemy sent great ships to tragic ends, like Britain's K13 submarine and HMS Hood, Sweden's 17th century Vasa, and Kublai Khan's fleet, sunk by the original kamikaze.
Metal War Ships
The evolution from wooden ships to metal ones in the second half of the 19th century is examined.
War Beneath the Waves
The 200-year evolution of the submarine in wartime is examined, told by the designers and engineers behind the machines.
Cold War Warriors
An up-close look at the naval carriers, destroyers, and nuclear submarines of the Cold War.
C-17
The inside story of the massive military transport aircraft, the C-17.
U-2 Dragon Lady
The history and evolution of America's most legendary spy plane.
F-16
The history of the F-16 Fighting Falcon and how it became the U.S. Air Force's most versatile plane.
Top Ten WWII
A countdown of the ten greatest military planes of World War II, including the Japanese Zero, the Nazi ME 109, and the B-29 Superfortress.
F-4 Phantom
The inside story of the F-4 Phantom, the U.S. military's go-to fighter for more than four decades.
Top Choppers
The world's most versatile and powerful helicopters, including the Huey that served as a rescue helicopter in Vietnam, and the Apache attack helicopter.
Galaxy
An inside look at the U.S. Air Force's largest aircraft, the C-5 Galaxy; its most dramatic combat and peacetime missions over the last 50 years.
OV-10 Bronco
The Vietnam-era OV-10 Bronco is pulled out of retirement to join the fight against ISIS.
MiG
The history of the Russian MiG, American air power's fiercest rival for more than 50 years.
Messerschmitt BF 109
Considered the deadliest fighter of WWII, Germany's Me-109s were feared by Allied bombers and fighters alike; 109s fought Spitfires in the Battle of Britain and alongside Rommel in North Africa.
B-24 Liberator
The most-produced bomber in US history, used during World War II by every branch of the American military, as well as by the Royal Air Force.
PBY Catalina
A look at the amphibious aircraft and the many roles it served during WWII, from patrol bomber to search-and-rescue aircraft.
Mosquito
A look at the British multirole fighter aircraft; the de Havilland Mosquito was used in the Second World War as a bomber, fighter and reconnaissance aircraft.
Hawker Hurricane
The overlooked underdog of British fighter planes; fast and versatile, the dogfighter doubled as a bomber and ground support aircraft in every theatre of WWII.
Wyoming
An aerial exploration of Wyoming reveals the Cowboy State's controversial history while highlighting its breathtaking canyons and volcanic formations.
Trailblazers
An aerial tour over the places made famous by America's most influential men and women.
Idaho
A view of Idaho from the air reveals a state filled with agricultural fields, lands untouched by human hands, and riches in the form of gold, ski resorts and spuds.
Northern California
A flight over Northern California explores ancient forests, timeless coasts, golden cities and the region's pioneering spirit.
The Dakotas
A flight over North and South Dakota reveals the shared history and the vast differences of these sibling states.
Washington D.C.
A soaring tour over Washington, D.C. explores the unique landscape, rich history and colorful story of the Nation's Capital.
Nevada
An aerial tour of Nevada; the state's deserts, ghost towns, neon cities and Hoover Dam; its history built on epic booms and busts.
Gimli Glider
A pilot heads for a decommissioned air force base when the Boeing 767 jet he is flying unexpectedly runs out of fuel.
Catastrophe at O'Hare
On 25 May 1979, the number-one engine on American Airlines Flight 191 detaches moments after taking off from Chicago O'Hare International Airport. The aircraft banks to the left and crashes into an open field, killing all 271 people on board.
A Wounded Bird
A blade on the left-side propeller of Atlantic Southeast Airlines Flight breaks off; the imbalance of the rotating propeller causes the engine to partly tear itself from its mounting.
Deadly Exchange
When a commuter flight crashes mysteriously just a mile from a Missouri runway, investigators turn their attention to the final seconds in the cockpit.
Fire Fight
A mechanical problem aboard an Air Canada plane turns into an all-out emergency six miles in the air.
Hanging by a Thread
The roof of an Aloha Airlines 737 tears off the plane at 24,000 feet in the sky.
Turning Point
A Northwest Airlines flight cruises above the Bering Sea before problems develop and pilots must make an emergency landing in Anchorage.
Arctic Guardians
A suspected toxic leak grounds a Boeing 737 at Anchorage International, engine trouble endangers the midair refuelling of the USAF's most advanced fighter jets, and a discovery at Anchorage customs uncovers clues to an international smuggling ring.
Arctic Survival
A national snowstorm brings U.S. aviation to a standstill, but Anchorage fights through the storm; USAF aircrews endure the toughest survival training on Alaska's North Slope, and a veteran aircraft flies life-saving cargo.
Crisis at Crooked Creek
A family-run airline flies emergency supplies to a remote village hit by water pollution; Alaska's biggest cargo airline loads high explosives on a busy runway; Anchorage's elite pilots come to the rescue of a holiday party.
Snow Bomb
Record-breaking snow in Anchorage could shut down the airport; a novice pilot tests his nerve landing on a frozen lake; USAF aircrews battle the toughest Arctic survival training; a unique aircraft workshop Alaska-proofs a vintage.
Live And Let Fly
A lone bush pilot races to stock ultra-marathon checkpoints, a heli pilot risks a sling-load at 4,000 feet and comes inches from disaster, and a vintage DC-3 plane is a village's only lifeline as a storm closes in.
Pitch Battle
After Colgan Air 9446 crashes off Cape Cod, investigators must determine what brought down a widely-used commuter aircraft in under three minutes.
Deadly Delivery
UPS Airlines Flight 1354 clips the tops of trees and crashes into a hillside about one nautical mile short of the runway during final approach to Birmingham-Shuttlesworth International Airport in Alabama.
Ghost Plane
Investigators try to solve the mystery of a plane whose captain and co-pilot are missing.
Caught on Tape
The dashcam of a passing car captures stunning footage of the final moments of a Taiwanese commuter aircraft as it banks steeply, clips an elevated highway and nosedives into the river; investigators find no signs of pre-impact malfunction.
No Exit
Following a catastrophic runway collision at LAX, passengers on USAIR Flight 1493 struggle to escape the burning plane.
Made in the USA
A cross-country flight across America reveals the nation's most iconic industries, the people behind them and the stories of how they came to be.
Alaska's Fire and Ice
The world's largest volcanic island; Iceland's landscapes, forged by fire and ice; a tour over Alaska, the residents it attracts and the wildlife that thrives in these unique surroundings.
Texas
The Lone Star's rugged canyons, historic ranches and modern cities.
Vermont
Northern state's green forests; red-painted barns and sugar maples.
Wilderness
A cross-country flight over icy landscapes in Alaska's Denali, vast wetlands in Florida's Everglades, and over 100 million acres of badlands, deserts, and mountains.
Outdoor Adventures
A cross-country flight over the nation's mountains, beaches and national parks; visiting other sites that attract adventurers and tourists.
Amazing Destinations
Natural wonders, manmade marvels, hidden treasures and places of inspiration.
California
Zoom above, and below, some of the Golden State's greatest monuments.
Yellowstone
An aerial tour of the world's first national park showcases Yellowstone's diverse wildlife and rich history.
Kansas
An aerial tour of Kansas shows a state with varied landscapes, scenic areas and historical conflict sites.
Beyond Hollywood
A coast-to-coast aerial journey across America, visiting locations made famous by movies such as Rocky, Citizen Kane, Forrest Gump and others.
The Wild West
A journey over America's western landscape featuring "wild" history and stories of colorful characters.
Manned Missions
Trace the chain of events that led to a deadly explosion on the Deepwater Horizon rig and unleashed the largest marine oil spill in history; see the failed part that caused the NASA Challenger Space Shuttle to explode seconds after liftoff.
Chemical Blasts
Experts examine how the Chernobyl nuclear disaster and the Bhopal gas tragedy happened; they also explore the consequences and how they could have been avoided.
