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![18 Ways to Make a Baby](/wgbh/nova/images03/ticon_2811_baby.jpg) | 18 Ways to Make a Baby Investigate the brave new world of assisted reproduction. |
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![Ancient Refuge in the Holy Land](/wgbh/nova/images03/ticon_3118_scrolls.jpg) | Ancient Refuge in the Holy Land Israel's remote Cave of Letters holds clues to a Jewish uprising against the Romans. |
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![NOVA scienceNOW: Art Authentication](/wgbh/nova/images03/ticon_0302_02_nsn.jpg) | NOVA scienceNOW: Art Authentication See how clever computer algorithms can distinguish a master fake from a masterpiece. |
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![Astrospies](/wgbh/nova/images03/ticon_3503_astrospi.jpg) | Astrospies An elite corps of secret U.S. astronauts is trained to gather intelligence on the Soviets during the Cold War. |
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![NOVA scienceNOW: Auto-Tune](/wgbh/nova/images03/ticon_0401_03_nsn.jpg) | NOVA scienceNOW: Auto-Tune Can't carry a tune? Andy Hildebrand's pitch-correction software can help you sing like a star. |
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![Balloon Race Around the World](/wgbh/nova/images03/ticon_2313_threemen.jpg) | 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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![Battle Alert in the Gulf](/wgbh/nova/images03/ticon_2608_battlegr.jpg) | Battle Alert in the Gulf Strategy makers, fighter pilots, Aegis cruiser captains, and fast-attack submarine crews contend with a hostile Iraq. |
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![Battle of the X-Planes](/wgbh/nova/images03/ticon_3004_xplanes.jpg) | Battle of the X-Planes Two aviation giants, Lockheed Martin and Boeing, compete to build the next-generation fighter jet. |
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![Battle Plan Under Fire](/wgbh/nova/images03/ticon_3110_wartech.jpg) | Battle Plan Under Fire Can the U.S. military's high-tech weaponry prevail against insurgents? |
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![Beast of Loch Ness, The](/wgbh/nova/images03/ticon_2601_lochness.jpg) | Beast of Loch Ness, The Scientists employ state-of-the-art sonar and cameras in an attempt to locate the elusive Loch Ness Monster. |
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![Bioterror](/wgbh/nova/images03/ticon_2815_bioterro.jpg) | Bioterror Explore germ warfare's chilling past, present, and future. |
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![Bomb Squad](/wgbh/nova/images03/ticon_2413_robots.jpg) | Bomb Squad IRA terrorists and British bomb disposal experts tell insider stories of a deadly cat-and-mouse game. |
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![Bombing of America](/wgbh/nova/images03/ticon_2310_bombing.jpg) | Bombing of America Forensic scientists search for clues hidden within the chaos of crime scenes to help law enforcement find the Unabomber. |
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![Car of the Future](/wgbh/nova/images03/ticon_3507_car.jpg) | Car of the Future Join the 'Car Talk' guys as they hit the road in search of a new breed of clean, fuel-efficient vehicles. |
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![NOVA scienceNOW: CERN](/wgbh/nova/images03/ticon_3410_02_nsn.jpg) | NOVA scienceNOW: CERN Beneath the Alps, the mother of all particle accelerators nears completion. |
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![Cut to the Heart](/wgbh/nova/images03/ticon_2409_heart.jpg) | Cut to the Heart Ever since World War II, physicians have struggled to find ways to treat heart failure, the biggest killer in the modern world. |
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![Decoding Nazi Secrets](/wgbh/nova/images03/ticon_2615_decoding.jpg) | Decoding Nazi Secrets Allied technologies developed at Britain's Station X helped halt the onslaught of the Third Reich and set the stage for today's computers. |
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![Diamond Deception](/wgbh/nova/images03/ticon_2703_diamond.jpg) | Diamond Deception Makeshift labs in China and Russia are turning out synthetic gemstones that rival natural diamonds. |
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![Dirty Bomb](/wgbh/nova/images03/ticon_3007_dirtybom.jpg) | Dirty Bomb Radiation experts play out a frightening terrorist scenario—exploding a bomb laden with radioactive materials. |
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![Electric Heart](/wgbh/nova/images03/ticon_2617_eheart.jpg) | Electric Heart Pioneering surgeons test artificial hearts in the hope of saving the lives of people with coronary heart disease. |
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![Escape!](/wgbh/nova/images03/ticon_2604_escafire.jpg) | Escape! Engineers learn from past disasters to make fires and car, plane, and ship accidents increasingly survivable. |
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![Fall of the Leaning Tower](/wgbh/nova/images03/ticon_2611_pisa.jpg) | Fall of the Leaning Tower An international committee of engineers and architects race to prevent the toppling of Pisa's famous monument. |
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![NOVA scienceNOW: Profile: Hany Farid](/wgbh/nova/images03/ticon_0301_03_nsn.jpg) | NOVA scienceNOW: Profile: Hany Farid This self-proclaimed "accidental scientist" is a digital detective inventing new ways to tell if photos have been faked. |
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![Faster than Sound](/wgbh/nova/images03/ticon_2412_barrier.jpg) | Faster than Sound Top test pilots describe the dangers, mysteries, and thrill of being the first to fly at supersonic speed. |
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![Fireworks!](/wgbh/nova/images03/ticon_2903_firework.jpg) | Fireworks! Pyrotechnists use hi-tech firing systems and ancient alchemy to create dazzling fireworks displays. |
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![The Great Robot Race](/wgbh/nova/images03/ticon_3308_darpa.jpg) | The Great Robot Race Driverless vehicles compete in a 130-mile race across the Mojave Desert. |
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![Harvest of Fear](/wgbh/nova/images03/ticon_28gm_harvest.jpg) | Harvest of Fear Genetically modified foods—a wondrous advance or a new threat? Explore the growing controversy. |
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![Hitler's Lost Sub](/wgbh/nova/images03/ticon_2712_lostsub.jpg) | Hitler's Lost Sub A fisherman's net snags off the coast of New Jersey, revealing a missing World War II German U-boat. |
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![Hunt for the Supertwister](/wgbh/nova/images03/ticon_3107_tornado.jpg) | 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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![Kaboom!](/wgbh/nova/images03/ticon_2401_kaboom.jpg) | Kaboom! Explore the science of explosions - from fireworks to building demolitions. |
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![Killer Disease on Campus](/wgbh/nova/images03/ticon_2909_meningit.jpg) | Killer Disease on Campus Doctors combat the deadliest form of meningitis, which strikes young people out of the blue. |
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![Leopards of the Night](/wgbh/nova/images03/ticon_2519_leopards.jpg) | Leopards of the Night NOVA's state-of-the-art camera equipment reveals the nocturnal hunting behavior of leopards in Zambia's Luangua Valley. |
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![Lincoln's Secret Weapon](/wgbh/nova/images03/ticon_2710_monitor.jpg) | Lincoln's Secret Weapon The Navy undertakes a risky project to salvage the USS Monitor, an innovative armored combat vessel from the Civil War. |
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![Lost at Sea: The Search for Longitude](/wgbh/nova/images03/ticon_2511_longitud.jpg) | Lost at Sea: The Search for Longitude How the quest for a reliable method to find your way at sea was solved by an 18th-century English clockmaker. |
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![Lost City of Arabia](/wgbh/nova/images03/ticon_2312_ubar.jpg) | Lost City of Arabia Helped by remote sensing, an expedition searches Oman's vast al-Khali desert for the lost city of Ubar. |
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![MARS Dead or Alive](/wgbh/nova/images03/ticon_3101_mars.jpg) | MARS Dead or Alive NASA gambles on two rovers sent to determine if the red planet ever had conditions suitable for life. |
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![NOVA scienceNOW: Maya](/wgbh/nova/images03/ticon_3401_03_nsn.jpg) | NOVA scienceNOW: Maya NASA archeologists use satellites to pinpoint ancient ruins buried deep in the jungle. |
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![Nazi Prison Escape](/wgbh/nova/images03/ticon_2803_nazipris.jpg) | Nazi Prison Escape From 1940 to 1945, Allied prisoners of war engineered spectacular escapes from Colditz Castle, the Nazis' most impregnable prison. |
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![Odyssey of Life](/wgbh/nova/images03/ticon_2317_odyultim.jpg) | Odyssey of Life Lennart Nilsson's extraordinary microphotography reveals a world we've never seen—within and on ourselves. |
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![Perfect Pearl, The](/wgbh/nova/images03/ticon_2520_pearl.jpg) | Perfect Pearl, The Once a rare gem produced by an accident of nature, the pearl is now the product of careful human engineering. |
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![NOVA scienceNOW: Profile: Cynthia Breazeal](/wgbh/nova/images03/ticon_3318_03_nsn.jpg) | NOVA scienceNOW: Profile: Cynthia Breazeal A daring engineer designs robots to communicate and interact the way people do. |
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![NOVA scienceNOW: Profile: Naomi Halas](/wgbh/nova/images03/ticon_3209_03_nsn.jpg) | NOVA scienceNOW: Profile: Naomi Halas Naomi Halas is a pioneering nanotechnologist bent on seeing practical applications for her work—and soon. |
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![NOVA scienceNOW: Profile: Karl Iagnemma](/wgbh/nova/images03/ticon_3313_04_nsn.jpg) | NOVA scienceNOW: Profile: Karl Iagnemma An innovative MIT roboticist is also an acclaimed fiction writer. |
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![NOVA scienceNOW: Profile: Yoky Matsuoka](/wgbh/nova/images03/ticon_0304_03_nsn.jpg) | NOVA scienceNOW: Profile: Yoky Matsuoka A former tennis prodigy aims to create advanced prosthetic limbs controlled by human thought. |
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![NOVA scienceNOW: Profile: James McLurkin](/wgbh/nova/images03/ticon_3204_03_mclu.jpg) | NOVA scienceNOW: Profile: James McLurkin James McLurkin of MIT is one of the world's leading designers of robot "swarms"—groups of robots that work together for a greater purpose. |
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![NOVA scienceNOW: Profile: Luis von Ahn](/wgbh/nova/images03/ticon_0401_04_nsn.jpg) | NOVA scienceNOW: Profile: Luis von Ahn A computer scientist finds novel ways to stop spammers and harness the brainpower of millions of people. |
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![Russia's Nuclear Warriors](/wgbh/nova/images03/ticon_2814_missilee.jpg) | Russia's Nuclear Warriors Go inside Russia's largest missile base, where soldiers still stand at the ready, awaiting orders to push the nuclear button. |
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![Saved by the Sun](/wgbh/nova/images03/ticon_3406_solar.jpg) | Saved by the Sun Is it time to take solar energy seriously? |
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![NOVA scienceNOW: Saving Hubble](/wgbh/nova/images03/ticon_0303_01_nsn.jpg) | NOVA scienceNOW: Saving Hubble Two teams of spacewalkers take on the risky mission of reviving the ailing Space Telescope. |
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![Saving the National Treasures](/wgbh/nova/images03/ticon_3206_charters.jpg) | Saving the National Treasures Restorers take on the preservation of the original Declaration of Independence, Constitution, and Bill of Rights. |
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![NOVA scienceNOW: The Search for ET](/wgbh/nova/images03/ticon_0305_02_nsn.jpg) | NOVA scienceNOW: The Search for ET Astronomers have their radio telescopes tuned to receive signals from alien worlds. But is anybody out there? |
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![Search for a Safe Cigarette](/wgbh/nova/images03/ticon_2810_cigarett.jpg) | Search for a Safe Cigarette The tobacco industry's quest for a "safer" cigarette is filled with promise and pitfalls. |
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![Secrets of Easter Island](/wgbh/nova/images03/ticon_27ei_sle2east.jpg) | Secrets of Easter Island A team attempts to recreate the original islanders' success at moving and erecting giant moai statues. |
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![Secrets of Lost Empires II: China Bridge](/wgbh/nova/images03/ticon_27fb_sle2chin.jpg) | Secrets of Lost Empires II: China Bridge Two teams working from opposite sides of a turbulent river attempt to build a 12th-century Chinese bridge. |
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![Secrets of Lost Empires II: Easter Island](/wgbh/nova/images03/ticon_27ei_sle2east.jpg) | Secrets of Lost Empires II: Easter Island How did the ancient Easter Islanders move and erect giant stone statues? Our team tests one theory. |
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![Secrets of Lost Empires II: Medieval Siege](/wgbh/nova/images03/ticon_27ms_sle2treb.jpg) | Secrets of Lost Empires II: Medieval Siege Two teams set out to build precise replicas of a fearsome medieval weapon—the trebuchet. |
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![Secrets of Lost Empires II: Pharaoh's Obelisk](/wgbh/nova/images03/ticon_27po_sle2phar.jpg) | Secrets of Lost Empires II: Pharaoh's Obelisk Experts take on the challenge of raising a 40-ton obelisk without using modern technology. |
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![Secrets of Lost Empires II: Roman Bath](/wgbh/nova/images03/ticon_27rb_sle2roma.jpg) | Secrets of Lost Empires II: Roman Bath NOVA sets out to create a working Roman bath, complete with hot tubs and underfloor heating. |
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![Secrets of Making Money](/wgbh/nova/images03/ticon_2314_moolah.jpg) | Secrets of Making Money With a radically redesigned bill, the U.S. Treasury fights back against a new breed of counterfeiters. |
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![Secrets of the Samurai Sword](/wgbh/nova/images03/ticon_3412_samurai.jpg) | Secrets of the Samurai Sword Examine the thousand-year-old art and science behind the making of a Japanese warrior's key weapon. |
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![Sinking City of Venice](/wgbh/nova/images03/ticon_2914_venice.jpg) | Sinking City of Venice Experts struggle to save the City of Canals before it vanishes beneath the waves. |
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![NOVA scienceNOW: Smart Bridges](/wgbh/nova/images03/ticon_0304_04_nsn.jpg) | NOVA scienceNOW: Smart Bridges Can we engineer bridges that tell us what's wrong with them before it's too late? |
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![NOVA scienceNOW: Space Elevator](/wgbh/nova/images03/ticon_3401_02_nsn.jpg) | NOVA scienceNOW: Space Elevator Can we build a 22,000-mile-high cable to transport cargo and people into space? |
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![Special Effects: Titanic and Beyond](/wgbh/nova/images03/ticon_2514_specfx2.jpg) | Special Effects: Titanic and Beyond NOVA goes behind the scenes in Hollywood, where the art of illusion meets the science of perception. |
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![Spies That Fly](/wgbh/nova/images03/ticon_3001_spiesfly.jpg) | Spies That Fly A new generation of pilotless planes fly, spy, and bomb in places too risky for human pilots. |
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![Sputnik Declassified](/wgbh/nova/images03/ticon_3415_sputnik.jpg) | Sputnik Declassified Top-secret documents rewrite the history of the famous satellite and the early space race. |
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![The Spy Factory](/wgbh/nova/images03/ticon_3602_spyfactory.jpg) | The Spy Factory Examine the high-tech eavesdropping carried out by the National Security Agency and the pitfalls of surveillance in an age of terrorism. |
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![Stationed in the Stars](/wgbh/nova/images03/ticon_2707_station.jpg) | Stationed in the Stars NOVA examines the International Space Station, the largest construction project ever undertaken in orbit. |
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![Submarines, Secrets and Spies](/wgbh/nova/images03/ticon_2602_subsecre.jpg) | Submarines, Secrets and Spies Explorer Robert Ballard, discoverer of the Titanic, investigates the wrecks of two Cold War-era nuclear submarines. |
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![Super Bridge](/wgbh/nova/images03/ticon_2416_bridge.jpg) | Super Bridge Engineers solve a unique set of problems in safety, aesthetics, and cost as they build a bridge over the Mississippi River. |
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![Supersonic Dream](/wgbh/nova/images03/ticon_3203_concorde.jpg) | Supersonic Dream Engineers, pilots, and others who knew Concorde tell its remarkable story. |
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![Supersonic Spies](/wgbh/nova/images03/ticon_2503_superson.jpg) | Supersonic Spies The race to build the world's first supersonic passenger airliner leads to a massive Cold War espionage effort. |
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![Terror in Space](/wgbh/nova/images03/ticon_2513_mir.jpg) | Terror in Space Russian and American astronauts experience life-threatening problems aboard the aging Mir space station. |
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![Titanic's Lost Sister](/wgbh/nova/images03/ticon_2402_titanic.jpg) | Titanic's Lost Sister Underwater explorer Robert Ballard uses sonar technology to find the Britannic, a ship lost in the Aegean in World War I. |
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![To The Moon](/wgbh/nova/images03/ticon_2610_tothemoo.jpg) | To The Moon Relive the remarkable history of humankind's journeys to the moon. |
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![Top Gun Over Moscow](/wgbh/nova/images03/ticon_2315_topgun.jpg) | Top Gun Over Moscow Flights in Russia's powerful fighter jets are for sale to foreign travelers. So is the Russian Air Force still in the game? |
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![Underwater Dream Machine](/wgbh/nova/images03/ticon_3319_alicia.jpg) | Underwater Dream Machine Follow one man's quest to engineer a submarine with panoramic views. |
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![Volcano's Deadly Warning](/wgbh/nova/images03/ticon_2913_volcano.jpg) | Volcano's Deadly Warning A man obsessed with understanding volcanoes comes up with a radical new way to predict eruptions. |
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![Wave That Shook the World](/wgbh/nova/images03/ticon_3208_tsunami.jpg) | 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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![Welcome to Mars](/wgbh/nova/images03/ticon_3201_mars.jpg) | Welcome to Mars Two rovers roaming the surface of Mars find proof that it was once awash in water. |
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![Who Killed the Red Baron?](/wgbh/nova/images03/ticon_3011_redbaron.jpg) | Who Killed the Red Baron? Forensic experts investigate the most famous aviation mystery of World War I. |
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![Why the Towers Fell](/wgbh/nova/images03/ticon_2907_wtc.jpg) | Why the Towers Fell Forensic engineers investigate the collapse of the World Trade Center. |
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![NOVA scienceNOW: Wisdom of the Crowds](/wgbh/nova/images03/ticon_0301_04_nsn.jpg) | NOVA scienceNOW: Wisdom of the Crowds Ask enough people to estimate something, and the average of their guesses will get you surprisingly close to the right answer. |
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![Wright Brothers' Flying Machine](/wgbh/nova/images03/ticon_3015_wright.jpg) | Wright Brothers' Flying Machine Relive the engineering challenges that two obscure bicycle makers overcame to become first in flight. |
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