Nova

PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA programs demystify science and technology and highlight the people involved in scientific pursuits.

Wed, Apr 8 9:00 P.M. The Truth About Fat     NHPBS

Scientists are coming to understand fat as a system akin to an organ -- one whose size may have more to do with biological processes than personal choices.

Thu, Apr 9 1:00 A.M. The Truth About Fat     NH EXPLORE

Scientists are coming to understand fat as a system akin to an organ -- one whose size may have more to do with biological processes than personal choices.

Thu, Apr 9 4:00 A.M. The Truth About Fat     NHPBS

Scientists are coming to understand fat as a system akin to an organ -- one whose size may have more to do with biological processes than personal choices.

Thu, Apr 9 12:00 P.M. The Truth About Fat     NH EXPLORE

Scientists are coming to understand fat as a system akin to an organ -- one whose size may have more to do with biological processes than personal choices.

Thu, Apr 9 12:00 P.M. The Impossible Flight     NH WORLD

Thu, Apr 9 7:00 P.M. The Truth About Fat     NH WORLD

Scientists are coming to understand fat as a system akin to an organ -- one whose size may have more to do with biological processes than personal choices.

Fri, Apr 10 12:00 A.M. The Truth About Fat     NH WORLD

Scientists are coming to understand fat as a system akin to an organ -- one whose size may have more to do with biological processes than personal choices.

Fri, Apr 10 5:00 A.M. The Truth About Fat     NH EXPLORE

Scientists are coming to understand fat as a system akin to an organ -- one whose size may have more to do with biological processes than personal choices.

Fri, Apr 10 8:00 A.M. The Truth About Fat     NH WORLD

Scientists are coming to understand fat as a system akin to an organ -- one whose size may have more to do with biological processes than personal choices.

Fri, Apr 10 12:00 P.M. Black Hole Apocalypse/Black Hole Universe     NH WORLD

Fri, Apr 10 1:00 P.M. Black Hole Universe     NH WORLD

Sat, Apr 11 1:00 P.M. The Truth About Fat     NH EXPLORE

Scientists are coming to understand fat as a system akin to an organ -- one whose size may have more to do with biological processes than personal choices.

Sun, Apr 12 1:00 A.M. The Truth About Fat     NH EXPLORE

Scientists are coming to understand fat as a system akin to an organ -- one whose size may have more to do with biological processes than personal choices.

Sun, Apr 12 4:00 A.M. The Truth About Fat     NHPBS

Scientists are coming to understand fat as a system akin to an organ -- one whose size may have more to do with biological processes than personal choices.

Sun, Apr 12 2:00 P.M. The Truth About Fat     NHPBS

Scientists are coming to understand fat as a system akin to an organ -- one whose size may have more to do with biological processes than personal choices.

Mon, Apr 13 12:00 P.M. Secrets of the Shining Knight     NH WORLD

Sun, Apr 19 2:00 P.M. The Truth About Fat     NHPBS

Scientists are coming to understand fat as a system akin to an organ -- one whose size may have more to do with biological processes than personal choices.

Wed, Apr 22 10:00 P.M. Killer Floods     NHPBS

Uncover geologic fingerprints of colossal floods that violently reshaped the ancient world.

Thu, Apr 23 2:00 A.M. Killer Floods     NH EXPLORE

Uncover geologic fingerprints of colossal floods that violently reshaped the ancient world.

Thu, Apr 23 5:00 A.M. Killer Floods     NHPBS

Uncover geologic fingerprints of colossal floods that violently reshaped the ancient world.

Thu, Apr 23 1:00 P.M. Killer Floods     NH EXPLORE

Uncover geologic fingerprints of colossal floods that violently reshaped the ancient world.

Thu, Apr 23 7:00 P.M. Killer Floods     NH WORLD

Uncover geologic fingerprints of colossal floods that violently reshaped the ancient world.

Fri, Apr 24 12:00 A.M. Killer Floods     NH WORLD

Uncover geologic fingerprints of colossal floods that violently reshaped the ancient world.

Fri, Apr 24 5:00 A.M. Killer Floods     NH EXPLORE

Uncover geologic fingerprints of colossal floods that violently reshaped the ancient world.

Fri, Apr 24 8:00 A.M. Killer Floods     NH WORLD

Uncover geologic fingerprints of colossal floods that violently reshaped the ancient world.

Fri, Apr 24 2:00 P.M. Killer Floods     NH WORLD

Uncover geologic fingerprints of colossal floods that violently reshaped the ancient world.

Sun, Apr 26 1:00 A.M. Killer Floods     NH EXPLORE

Uncover geologic fingerprints of colossal floods that violently reshaped the ancient world.

Sun, Apr 26 4:00 A.M. Killer Floods     NHPBS

Uncover geologic fingerprints of colossal floods that violently reshaped the ancient world.

Wed, Apr 29 10:00 P.M. Poisoned Water     NHPBS

The water contamination crisis in Flint, MI, has revealed a disturbing truth about the vulnerabilities of our aging drinking water infrastructure.

Thu, Apr 30 2:00 A.M. Poisoned Water     NH EXPLORE

The water contamination crisis in Flint, MI, has revealed a disturbing truth about the vulnerabilities of our aging drinking water infrastructure.

Thu, Apr 30 5:00 A.M. Poisoned Water     NHPBS

The water contamination crisis in Flint, MI, has revealed a disturbing truth about the vulnerabilities of our aging drinking water infrastructure.

Thu, Apr 30 7:00 P.M. Poisoned Water     NH WORLD

The water contamination crisis in Flint, MI, has revealed a disturbing truth about the vulnerabilities of our aging drinking water infrastructure.

Thu, Apr 30 10:00 P.M. Decoding Da Vinci     NHPBS

Journey to Florence to discover how Leonardo da Vinci used science, from human dissections to innovative painting techniques, to create his legendary artwork.

Fri, May 1 12:00 A.M. Poisoned Water     NH WORLD

The water contamination crisis in Flint, MI, has revealed a disturbing truth about the vulnerabilities of our aging drinking water infrastructure.

Fri, May 1 5:00 A.M. Poisoned Water     NH EXPLORE

The water contamination crisis in Flint, MI, has revealed a disturbing truth about the vulnerabilities of our aging drinking water infrastructure.

Fri, May 1 8:00 A.M. Poisoned Water     NH WORLD

The water contamination crisis in Flint, MI, has revealed a disturbing truth about the vulnerabilities of our aging drinking water infrastructure.

Fri, May 1 2:00 P.M. Poisoned Water     NH WORLD

The water contamination crisis in Flint, MI, has revealed a disturbing truth about the vulnerabilities of our aging drinking water infrastructure.

Sun, May 3 1:00 A.M. Poisoned Water     NH EXPLORE

The water contamination crisis in Flint, MI, has revealed a disturbing truth about the vulnerabilities of our aging drinking water infrastructure.

Sun, May 3 4:00 A.M. Poisoned Water     NHPBS

The water contamination crisis in Flint, MI, has revealed a disturbing truth about the vulnerabilities of our aging drinking water infrastructure.

Sun, May 3 2:00 P.M. Poisoned Water     NHPBS

The water contamination crisis in Flint, MI, has revealed a disturbing truth about the vulnerabilities of our aging drinking water infrastructure.

Sun, May 3 10:00 P.M. Decoding Da Vinci     NH EXPLORE

Journey to Florence to discover how Leonardo da Vinci used science, from human dissections to innovative painting techniques, to create his legendary artwork.

Wed, May 13 9:00 P.M. Eagle Power     NHPBS

What makes eagles so remarkable? Researchers study one special bird, revealing her exceptional strength, eyesight and flying skills.

Thu, May 14 1:00 A.M. Eagle Power     NH EXPLORE

What makes eagles so remarkable? Researchers study one special bird, revealing her exceptional strength, eyesight and flying skills.

Thu, May 14 4:00 A.M. Eagle Power     NHPBS

What makes eagles so remarkable? Researchers study one special bird, revealing her exceptional strength, eyesight and flying skills.

Thu, May 14 7:00 P.M. Eagle Power     NH WORLD

Eagles are the most powerful birds in the sky. They are capable of tackling enormous prey, spotting food at vast distances and soaring for miles on the wing.

Fri, May 15 12:00 A.M. Eagle Power     NH WORLD

Eagles are the most powerful birds in the sky. They are capable of tackling enormous prey, spotting food at vast distances and soaring for miles on the wing.

Fri, May 15 5:00 A.M. Eagle Power     NH EXPLORE

What makes eagles so remarkable? Researchers study one special bird, revealing her exceptional strength, eyesight and flying skills.

Fri, May 15 8:00 A.M. Eagle Power     NH WORLD

Eagles are the most powerful birds in the sky. They are capable of tackling enormous prey, spotting food at vast distances and soaring for miles on the wing.

Fri, May 15 1:00 P.M. Eagle Power     NH EXPLORE

What makes eagles so remarkable? Researchers study one special bird, revealing her exceptional strength, eyesight and flying skills.

Fri, May 15 2:00 P.M. Eagle Power     NH WORLD

Eagles are the most powerful birds in the sky. They are capable of tackling enormous prey, spotting food at vast distances and soaring for miles on the wing.

Sat, May 16 12:00 P.M. Eagle Power     NH EXPLORE

What makes eagles so remarkable? Researchers study one special bird, revealing her exceptional strength, eyesight and flying skills.

Sun, May 17 1:00 A.M. Eagle Power     NH EXPLORE

What makes eagles so remarkable? Researchers study one special bird, revealing her exceptional strength, eyesight and flying skills.

Sun, May 17 4:00 A.M. Eagle Power     NHPBS

What makes eagles so remarkable? Researchers study one special bird, revealing her exceptional strength, eyesight and flying skills.

Sun, May 17 3:00 P.M. Eagle Power     NHPBS

What makes eagles so remarkable? Researchers study one special bird, revealing her exceptional strength, eyesight and flying skills.

Sun, May 17 9:00 P.M. Eagle Power     NH EXPLORE

What makes eagles so remarkable? Researchers study one special bird, revealing her exceptional strength, eyesight and flying skills.

Tue, May 19 9:00 P.M. Deadliest Tornadoes     NHPBS

In April 2011, the worst tornado outbreak in decades left a trail of destruction across the U.

Wed, May 20 1:00 A.M. Deadliest Tornadoes     NH EXPLORE

In April 2011, the worst tornado outbreak in decades left a trail of destruction across the U.

Wed, May 20 4:01 A.M. Deadliest Tornadoes     NHPBS

In April 2011, the worst tornado outbreak in decades left a trail of destruction across the U.

Wed, May 20 1:00 P.M. Deadliest Tornadoes     NH EXPLORE

In April 2011, the worst tornado outbreak in decades left a trail of destruction across the U.

Wed, May 20 9:00 P.M. Saving Notre Dame     NHPBS

When the roof of the Notre Dame cathedral erupted into flames in April of 2019, firefighters battled for nine grueling hours to save the historic landmark.

Thu, May 21 1:00 A.M. Saving Notre Dame     NH EXPLORE

When the roof of the Notre Dame cathedral erupted into flames in April of 2019, firefighters battled for nine grueling hours to save the historic landmark.

Thu, May 21 4:00 A.M. Saving Notre Dame     NHPBS

When the roof of the Notre Dame cathedral erupted into flames in April of 2019, firefighters battled for nine grueling hours to save the historic landmark.

Thu, May 21 12:00 P.M. Saving Notre Dame     NH EXPLORE

When the roof of the Notre Dame cathedral erupted into flames in April of 2019, firefighters battled for nine grueling hours to save the historic landmark.

Thu, May 21 7:00 P.M. Saving Notre Dame     NH WORLD


Watch Nova - Clips, Episodes & Previews


Nova By Episode

  • Building The Great Cathedrals (#3711)

    Gothic cathedrals are marvels of human achievement and artistry.

  • Japan's Killer Quake (#3810)

    In its worst crisis since World War II, Japan faces disaster on an epic scale: a rising death toll in the tens of thousands, massive destruction of homes and businesses, shortages of water and power, and the specter of nuclear reactor meltdowns.

  • Iceman Murder Mystery (#3815)

    He's been dead for more than 5,000 years. He's been poked, prodded and probed by scientists for the last 20.

  • Secrets of the Sun (#3907)

    It contains 99.9 percent of all the matter in our solar system and sheds hot plasma at nearly a million miles an hour.

  • Deadliest Tornadoes (#3910)

    In April 2011, the worst tornado outbreak in decades left a trail of destruction across the U.

  • Mystery of Easter Island (#3914)

    How and why did the ancient islander inhabitants of Easter Island build and move nearly 900 giant statues weighing up to 86 tons? Join a team of investigators as they test a high-risk and seemingly unlikely theory with a 15-ton replica statue.

  • Meteor Strike (#4013)

  • Meteor Strike (#4013)

    A blinding streak of light screaming across the Russian sky, followed by a shuddering blast strong enough to damage buildings and send more than 1000 people to the hospital.

  • Asteroid: Doomsday Or Payday? (#4024)

    The asteroid that exploded in the skies over Siberia injuring more than 1,000 and damaging buildings in six cities was a shocking reminder that Earth is a target in a cosmic shooting range.

  • Ghosts of Murdered Kings (#4103)

    NOVA follows archaeologists and forensic experts in Ireland's County Tipperary in their methodical hunt for clues to the identity and the circumstances of various violent deaths of bog body victims.

  • Roman Catacomb Mystery (#4104)

    Beneath the streets of Rome lies an ancient city of the dead known as the Catacombs -- a labyrinth of tunnels, hundreds of miles long, lined with tombs.

  • Inside Animal Minds: Bird Genius (#4108)

  • Inside Animal Minds: Dogs & Super Senses (#4109)

    What would it be like to go inside the mind of an animal? We have all gazed into a creature's eyes and wondered: what is it thinking about? What does it really know? Now, the revolutionary science of animal cognition is revealing hard evidence about how animals understand the world around them, uncovering their remarkable problem-solving abilities and exploring the complexity of their powers of communication and even their emotions.

  • Inside Animal Minds: Who's The Smartest? (#4110)

    What would it be like to go inside the mind of an animal? We have all gazed into a creature's eyes and wondered: what is it thinking about? What does it really know? Now, the revolutionary science of animal cognition is revealing hard evidence about how animals understand the world around them, uncovering their remarkable problem-solving abilities and exploring the complexity of their powers of communication and even their emotions.

  • Why Sharks Attack (#4111)

    In recent years, an unusual spate of deadly shark attacks has gripped Australia, resulting in five deaths in 10 months.

  • First Man on the Moon (#4122)

    NOVA presents an intimate portrait of Neil Armstrong, the first person to set foot on the moon, through interviews with Armstrong's family and friends.

  • Bigger Than T.rex (#4119)

    Almost a century ago, paleontologists found the first tantalizing hints of a monster even bigger than Tyrannosaurus Rex, perhaps the largest predator ever to walk the Earth: spectacular fossil bones from a dinosaur dubbed Spinosaurus.

  • Emperor's Ghost Army (#4120)

    Emperor Qin Shi Huang of China was buried in a mausoleum with around 9,000 terracotta statues.

  • The Great Math Mystery (#4207)

    NOVA leads viewers on a mathematical mystery tour-a provocative exploration of math's astonishing power across the centuries.

  • Dawn of Humanity (#4209)

    From a deep cave in South Africa comes an astounding discovery of an unprecedented trove of fossils of human relatives.

  • Lethal Seas (#4211)

  • Lethal Seas (#4211)

    A deadly recipe threatens the survival of countless creatures throughout Earth's oceans.

  • Arctic Ghost Ship (#4216)

    Unravel the greatest mystery in Arctic exploration: 160 years ago, the Franklin Expedition to chart the Northwest Passage vanished.

  • Secrets of Noah's Ark (#4212)

    A 3,700-year-old inscribed clay tablet reveals a surprising new version of the Biblical flood story, complete with how-to instructions for assembling an ark.

  • Making North America: Origins (#4220)

    See the epic 3-billion-year story of how our continent came to be.

  • Making North America: Life (#4221)

    Discover the surprising intertwined story of life and the landscape in North America-from origins to iconic dinosaurs to giant marine reptiles swimming in an ancient sea that once split the continent in two.

  • Making North America: Human (#4222)

    From Ice Age to oil boom, discover the challenges faced and the wealth uncovered as humans take over the continent.

  • Inside Einstein's Mind (#4223)

    Retrace Einstein's thought experiments as NOVA reveals the simple but powerful ideas that reshaped our understanding of gravity, illuminating the theory of general relativity-and Einstein's brilliance-as never before.

  • Life's Rocky Start (#4302)

    From the first sparks of life to the survival of the fittest, unearth the secret relationship between rocks and life.

  • Mystery Beneath The Ice (#4303)

    Dive under the ice to explore Antarctica's under-ice landscape with a team of scientists as they search for the mystery killer that's decimating the population of delicate shrimp-like creatures at the foundation of the Antarctic food chain.

  • Iceman Reborn (#4305)

    Murdered more than 5,000 years ago, Otzi the Iceman is the oldest human mummy on Earth.

  • Wild Ways (#4311)

    From Yellowstone to the Yukon, to Southern Africa's elephant highways stretching across five nations, explore how newly established wildlife corridors may offer a glimmer of hope to some of our planet's most cherished - but endangered - species.

  • Great Human Odyssey (#4312)

    Walk in the footsteps of our ancient ancestors as scientists trace the paths that led us out of Africa and around the world.

  • Operation Lighthouse Rescue (#4313)

    The Gay Head Lighthouse, a historic landmark perched high on the cliffs of Martha's Vineyard, is soon to become the next victim of the ocean's relentless erosion of the island's cliffs.

  • Bombing Hitler's Supergun (#4314)

    In the spring of 1943, Hitler hatched plans for a diabolical "supergun" in an effort to turn the tide of the war back in his favor.

  • Super Tunnel (#4317)

    Follow an army of engineers and designers as they tackle the complex challenge of building Crossrail, a massive new subterranean railway deep beneath the streets of London.

  • Treasures of the Earth: Gems (#4318)

    Gemstones like diamonds, rubies, opal and jade are the ultimate treasures.

  • Treasures of the Earth: Metals (#4319)

    Gold, bronze, iron, steel... metals are pillars of our civilization, but what makes them so special? Discover their unique properties and explore how our mastery of metals has led us from the stone age to today's hi-tech world.

  • Treasures of the Earth: Power (#4320)

    Drill down to discover how Earth's natural treasures provide bountiful energy to power our modern world yet are also driving us to seek new, cleaner alternatives that can help us keep the lights on.

  • Search for the Super Battery (#4403)

    Join renowned gadget geek and host David Pogue as he sets out on a quest to discover how batteries work and uncover what the future of batteries means for our gadgets, our lives and even our planet.

  • Ultimate Cruise Ship (#4404)

    Weighing 54,000 gross tons and stretching over two football fields, the Seven Seas Explorer is no ordinary boat.

  • The Origami Revolution (#4405)

    The ancient art of paper folding is sparking scientific advances, affecting drug development and future NASA space missions.

  • Holocaust Escape Tunnel (#4407)

    In the heart of Lithuania, a Holocaust secret lies buried.

  • Building Chernobyl's MegaTomb (#4408)

    Engineers race to build a massive dome to contain the crumbling remains of Chernobyl's reactor.

  • Chinese Chariot Revealed (#4409)

    For over 1000 years, chariots thundered across China's battlefields-dominating warfare longer than anywhere else on earth.

  • Poisoned Water (#4410)

    The water contamination crisis in Flint, MI, has revealed a disturbing truth about the vulnerabilities of our aging drinking water infrastructure.

  • Secrets of the Shining Knight (#4413)

  • Secrets of the Shining Knight (#4413)

    Discover what it was like to be a knight in shining armor and follow the historic manufacturing process.

  • Ghosts of Stonehenge (#4414)

    Who built Stonehenge and why? Discover how the last decade of groundbreaking archaeological digs has revealed major new clues to Britain's enigmatic 5,000-year-old site and the people who constructed it.

  • Secrets of the Forbidden City (#4415)

    Discover the ingenious engineering of Beijing's Forbidden City, the power center of imperial China for nearly 500 years.

  • Killer Floods (#4418)

    Uncover geologic fingerprints of colossal floods that violently reshaped the ancient world.

  • Extreme Animal Weapons (#4419)

    Explore the secrets that underlie nature's battleground.

  • Bird Brain (#4420)

    Long mocked as empty-headed, birds hide surprisingly acute intelligence.

  • Day The Dinosaurs Died (#4421)

  • Day The Dinosaurs Died (#4421)

    Investigate how an asteroid vanquished the dinosaurs 66 million years ago.

  • The Impossible Flight (#4503)

  • The Impossible Flight (#4503)

    Follow two intrepid pilots as they take on the greatest aviation adventure of our time, overcoming countless challenges as they construct and fly the first solar-powered airplane around the world.

  • Black Hole Apocalypse (#4501)

    Join astrophysicist and novelist Janna Levin on a mind-blowing voyage to the frontiers of black hole science, which is shining new light on the most powerful and mysterious objects in the universe.

  • Black Hole Apocalypse/Black Hole Universe (#4501)

  • Black Hole Universe (#4502)

  • First Face of America (#4504)

    Take a risky dive into an underwater cave in Mexico to uncover the 13, 000 year-old skeleton of a prehistoric teenager.

  • Great Escape at Dunkirk (#4505)

    Join archaeologists and divers recovering remains of ships and planes lost during World War II's epic Dunkirk operation.

  • Prediction by the Numbers (#4506)

    Discover how predictions underpin nearly every aspect of our lives and why some succeed spectacularly while others fail.

  • Decoding The Weather Machine (#4507)

    Join scientists on a quest to better understand the weather and climate machine we call Earth.

  • Rise of the Superstorms (#4508)

    Dive into the devastation wrought by Hurricanes Harvey, Irma and Maria.

  • Transplanting Hope (#4509)

    Follow the patients who desperately need transplants to save their lives, see the profound decisions families face in donating the organs of loved ones who die, and learn about the critical shortage of organs and new research into "organs by design.

  • Volatile Earth: Volcano On Fire (#4510)

    Climb up the cone of Nyiragongo, one of the world's least studied volcanoes, and join volcanologists as they descend into its crater, down towards its bubbling and seething lava lake, to discover when it will erupt next.

  • Volatile Earth: Volcano on the Brink (#4511)

    Join a team of volcanologists as they explore one of the world's most active and mysterious volcanoes in central Africa: Nyamuragira.

  • Addiction (#4512)

    Delve into America's opioid crisis - in a world in which many other diseases can be traced to addictive behavior, how do addictions work, and what can the science of addiction tell us about how we can resolve this dire social issue?

  • Flying Supersonic (#4513)

    A history of the legendary Concorde, the passenger plane that flew from the late 70s till 2003 at twice the speed of sound.

  • Thai Cave Rescue (#4514)

    Follow the remarkable story of how a Thai boys' soccer team became trapped in a cave system, how they were located, and how rescuers worked against the clock to make a miraculous rescue of all 12 boys and their coach.

  • Last B-24 (#4515)

    In 1944 a smoking, battle-scarred B-24 Liberator bomber known as the Tulsamerican crashed into the choppy seas off the coast of Croatia, entombing three of its occupants under 135 feet of water.

  • Operation Bridge Rescue (#4516)

    Follow the rebuilding of the 19th century Blenheim Covered Bridge.

  • World's Fastest Animal (#4517)

    The Peregrine Falcon is famously the fastest bird on earth, capable of reaching speeds of up to 242 mph in a dive.

  • Apollo's Daring Mission (#4518)

    Hear Apollo astronauts and engineers tell the inside story of how the first mission to the moon, Apollo 8, pioneered groundbreaking technologies that would pave the way to land a man on the moon and win the space race.

  • Pluto and Beyond (#4601)

    Join the mission as the New Horizons spacecraft attempts to fly by NASA's most distant target yet.

  • Einstein's Quantum Riddle (#4602)

    Quantum entanglement is poised to revolutionize technology from networks to code breaking, but first we need to know it's real.

  • Kilauea: Hawaii On Fire (#4603)

    Journey to Hawai'i's Kilauea volcano, which sent rivers of lava through communities and into the sea when it erupted in 2018.

  • Decoding The Great Pyramid (#4604)

    Stunning new archaeological evidence provides clues about the Egyptians who built the Great Pyramid of Giza -- and how they did it.

  • Rise of the Rockets (#4605)

    Marvel at a new era of space exploration and accessibility, thanks to NASA's return to crewed spaceflight, as well as private companies like SpaceX and Virgin Galactic, and technologies that make rockets cheaper and more powerful than ever.

  • The Next Pompeii (#4606)

    Discover Campi Flegrei, a lesser-known volcano in the shadow of Vesuvius.

  • Saving The Dead Sea (#4607)

    There's no place on Earth like it. Cleopatra attributed her beauty to its secrets.

  • Inside The Megafire (#4608)

  • First Horse Warriors (#4609)

    Horse riding played a key role in human expansion and civilization.

  • Lost Viking Army (#4610)

    Bioarchaeologists investigate a ninth-century mass grave in a rural English village.

  • Back to the Moon (#4611)

    Fifty years after humans first set foot on the moon, new scientific discoveries are fueling excitement for a return to the lunar surface -- this time, perhaps, to stay.

  • The Planets: Inner Worlds (#4612)

    The rocky planets - Mercury, Venus, Earth and Mars - were born of similar material around the same time, yet only one supports life.

  • The Planets: Mars (#4613)

    Mars was once a blue water world studded with active volcanoes.

  • The Planets: Jupiter (#4614)

    Jupiter's massive gravitational force made it a wrecking ball when it barreled through the early solar system.

  • The Planets: Saturn (#4615)

    NASA's Cassini explores Saturn for 13 years, looping through its icy rings and flying by its moons.

  • The Planets: Ice Worlds (#4616)

    In the far reaches of the solar system, Uranus and Neptune dazzle with unexpected rings, supersonic winds and dozens of moons.

  • Why Bridges Collapse (#4618)

    In 2018, Italy's Morandi Bridge collapsed, killing 43 people.

  • Look Who's Driving (#4619)

  • Look Who's Driving (#4619)

    Tech giants and car manufacturers alike are developing self-driving cars - and some of them are already on public roads.

  • Dead Sea Scroll Detectives (#4620)

    What can new technology reveal about the ancient Dead Sea Scrolls? Join scientists as they investigate suspicious, newly surfaced fragments to see if they're forfeited, and use imaging techniques to digitally unravel the charred remains of a scroll.

  • Decoding Da Vinci (#4621)

    Journey to Florence to discover how Leonardo da Vinci used science, from human dissections to innovative painting techniques, to create his legendary artwork.

  • The Violence Paradox (#4622)

    Violence is all over the news. But some say we're living in the most peaceful time in history.

  • Animal Espionage (#4623)

    Camera traps and drones are revolutionizing the study of wildlife by providing an up-close look at animals without disturbing them.

  • Rise of the Mammals (#4617)

  • Rise of the Mammals (#4617)

    Sixty-six million years ago, an asteroid wiped out the dinosaurs in a fiery global catastrophe.

  • Polar Extremes (#4701)

  • Polar Extremes (#4701)

    Following a trail of fossils found in all the wrong places -- beech trees in Antarctica, redwoods and hippo-like mammals in the Arctic -- uncover the bizarre history of the poles, from miles-thick ice sheets to warm polar forests teeming with life.

  • Dog Tales (#4702)

    Dogs have long been dependable companions by our sides.

  • Cat Tales (#4703)

    Worshiped as a goddess, condemned as satanic and spun into a stunning array of breeds, cats have long fascinated humans.

  • Mysteries of Sleep (#4704)

    Like virtually every other animal, humans need sleep to survive.

  • Cuba's Cancer Hope (#4705)

    When the U.S. trade embargo left Cuba isolated from medical resources, Cuban scientists developed their own biotech industry - and promising lung cancer vaccines.

  • The Truth About Fat (#4706)

    Scientists are coming to understand fat as a system akin to an organ -- one whose size may have more to do with biological processes than personal choices.

  • Eagle Power (#4707)

    Eagles are the most powerful birds in the sky. They are capable of tackling enormous prey, spotting food at vast distances and soaring for miles on the wing.

  • Eagle Power (#4707)

    What makes eagles so remarkable? Researchers study one special bird, revealing her exceptional strength, eyesight and flying skills.

  • Saving Notre Dame (#4708)

  • Saving Notre Dame (#4708)

    When the roof of the Notre Dame cathedral erupted into flames in April of 2019, firefighters battled for nine grueling hours to save the historic landmark.



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