• NOVA -- What if Carbon Left Your Tailpipe as Solid Chunks?
    S47 E1: What if Carbon Left Your Tailpipe as Solid Chunks?
    When fossil fuels are burned, they release carbon dioxide, an invisible and ...
    When fossil fuels are burned, they release carbon dioxide, an invisible and odorless gas, into the atmosphere. What would happen if carbon emerged from our car tailpipes as a solid?
    0:02:12
  • NOVA -- Antarctica: Journey to the Bottom of the Earth
    Antarctica: Journey to the Bottom of the Earth
    In the premiere episode of Antarctic Extremes, join hosts Caitlin Saks and Arlo ...
    In the premiere episode of Antarctic Extremes, join hosts Caitlin Saks and Arlo Pérez as they follow in the footsteps of the brave scientists that have made McMurdo Station, an otherworldly Antarctic ...
    0:14:11
  • NOVA -- This Little Armadillo Was a Big Ambassador for His Species
    S46 E23: This Little Armadillo Was a Big Ambassador for His Species
    Researchers use camera traps in a Brazilian rainforest to capture a ...
    Researchers use camera traps in a Brazilian rainforest to capture a day-in-the-life of Alex the armadillo.
    0:03:51
  • NOVA -- Using Drones to Solve 170-Year Bowhead Whale Mystery
    S46 E23: Using Drones to Solve 170-Year Bowhead Whale Mystery
    Why do bowhead whales hang around large rocks in the Arctic? Getting an aerial ...
    Why do bowhead whales hang around large rocks in the Arctic? Getting an aerial view allows one research team to make a surprising discovery.
    0:03:00
  • NOVA -- Has Violence Declined Through the Ages?
    S46 E22: Has Violence Declined Through the Ages?
    Five experts weigh in on the complexities of measuring violence.
    Five experts weigh in on the complexities of measuring violence.
    0:02:13
  • NOVA -- Taking Orders to Be Violent Might be Easier Than You Think
    S46 E22: Taking Orders to Be Violent Might be Easier Than You Think
    The Milgram Shock Experiment suggests that when an authority figure makes an ...
    The Milgram Shock Experiment suggests that when an authority figure makes an order, even if seemingly violent, most people will carry it through.
    0:05:17
  • NOVA -- Are Babies Capable of Making Moral Judgements?
    S46 E22: Are Babies Capable of Making Moral Judgements?
    Psychologist Karen Wynn runs an experiment to find out whether babies are born ...
    Psychologist Karen Wynn runs an experiment to find out whether babies are born with a sense of morality.
    0:03:36
  • NOVA -- Artificial Intelligence is Helping Get the Lead Out of Flint
    Artificial Intelligence is Helping Get the Lead Out of Flint
    Researchers are turning to AI to give workers the best chance of finding ...
    Researchers are turning to AI to give workers the best chance of finding dangerous lead in Flint.
    0:06:32
  • NOVA -- Giving the "Mona Lisa" a Digital Makeover
    S46 E21: Giving the "Mona Lisa" a Digital Makeover
    An engineer used powerful lights, cameras, and computer software to digitally ...
    An engineer used powerful lights, cameras, and computer software to digitally remove the varnish from the "Mona Lisa," allowing people today to see the painting as Leonardo da Vinci created it.
    0:03:10
  • NOVA -- How Leonardo da Vinci Used Anatomy to Inform his Paintings
    S46 E21: How Leonardo da Vinci Used Anatomy to Inform his Paintings
    Modern-day anatomy experts find inspiration in drawings from Leonardo da ...
    Modern-day anatomy experts find inspiration in drawings from Leonardo da Vinci’s cadaveric dissections. But they also recognize what he got wrong.
    0:04:59
  • NOVA -- How did Leonardo da Vinci Paint the "Mona Lisa"?
    S46 E21: How did Leonardo da Vinci Paint the "Mona Lisa"?
    To master Mona Lisa's form, da Vinci carefully studied the human eye and ...
    To master Mona Lisa's form, da Vinci carefully studied the human eye and mouth—and he dissected at least 30 human bodies.
    0:01:45
  • NOVA -- Experts Investigate Dead Sea Scroll Forgeries
    S46 E20: Experts Investigate Dead Sea Scroll Forgeries
    Some Dead Sea scroll replicas appear surprisingly authentic. But a thorough ...
    Some Dead Sea scroll replicas appear surprisingly authentic. But a thorough examination by scholars reveal some of their features aren't quite right.
    0:03:16
  • NOVA -- Paleontologists Discover New Mammal Fossils Hidden in Rocks
    S46 E17: Paleontologists Discover New Mammal Fossils Hidden in Rocks
    Hidden inside ordinary-looking rocks, an astonishing trove of fossils paints a ...
    Hidden inside ordinary-looking rocks, an astonishing trove of fossils paints a dramatic picture of how rat-sized creatures ballooned in size and began to evolve into the vast array of species—from ...
    0:05:44
  • NOVA -- Paleontologist Makes "Game-Changing" Fossil Discovery
    S46 E17: Paleontologist Makes "Game-Changing" Fossil Discovery
    At Corral Bluffs, Colorado, paleontologist Tyler Lyson discovers rare mammal ...
    At Corral Bluffs, Colorado, paleontologist Tyler Lyson discovers rare mammal fossils that paint a picture of the first million years after an asteroid killed the dinosaurs.
    0:01:34
  • NOVA -- How Fossilized Plants Tell Us About the Evolution of Animals
    S46 E17: How Fossilized Plants Tell Us About the Evolution of Animals
    Vertebrate fossils can help scientists better understand evolutionary timelines. ...
    Vertebrate fossils can help scientists better understand evolutionary timelines. But plant fossils give paleontologists and paleobotanists a more complete story.
    0:01:34
  • NOVA -- Mammal Fossils Fill in Missing Piece of the Timeline of Life
    S46 E17: Mammal Fossils Fill in Missing Piece of the Timeline of Life
    Paleontologists analyze concretions—hard orbs of minerals that can collect ...
    Paleontologists analyze concretions—hard orbs of minerals that can collect around material like bone—and discover fossils of mammals that lived on Earth just after an asteroid killed the ...
    0:03:35
  • NOVA -- Testing Self-Driving Cars in the Real World
    S46 E19: Testing Self-Driving Cars in the Real World
    To test self-driving cars without putting lives at risk, most companies do a lot ...
    To test self-driving cars without putting lives at risk, most companies do a lot of their training in environments they can fully control. But ultimately, the only way to know how a car will perform ...
    0:03:46
  • NOVA -- How West Virginia's Silver Bridge Fell in 1967
    S46 E18: How West Virginia's Silver Bridge Fell in 1967
    In a single-point bridge failure, one component breaks and brings down an entire ...
    In a single-point bridge failure, one component breaks and brings down an entire structure. See how this happened 52 years ago to West Virginia’s Silver Bridge.
    0:03:15
  • NOVA -- Survivors Recount Bridge Collapse in Genoa, Italy
    S46 E18: Survivors Recount Bridge Collapse in Genoa, Italy
    In August of 2018, an 800-foot section of Genoa, Italy's Ponte Morandi Bridge ...
    In August of 2018, an 800-foot section of Genoa, Italy's Ponte Morandi Bridge collapsed, killing 43 people. Two survivors reflect on the event.
    0:02:34
  • NOVA -- Three Tasks Driverless Cars Need to Learn
    S46 E19: Three Tasks Driverless Cars Need to Learn
    To match human drivers, an automated vehicle needs to learn how to handle three ...
    To match human drivers, an automated vehicle needs to learn how to handle three distinct tasks: seeing everything around the car, understand what it’s seeing, and planning the car’s path.
    0:02:44
  • NOVA -- How Voyager discovered that Neptune is oddly warm and stormy
    S46 E16: How Voyager discovered that Neptune is oddly warm and stormy
    Despite Neptune's distance from the Sun, the Voyager mission discovers that ...
    Despite Neptune's distance from the Sun, the Voyager mission discovers that Neptune is warmer than its neighbor, Uranus. And, it has the strongest winds of any planet in the Solar System.
    0:01:58