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| Oklahoma's Deadliest Tornadoes Hear harrowing stories from survivors of Moore's massive tornado and meet scientists who stalk these ferocious storms. Read More » Living with Leopards In India, the big cats are common. So are conflicts with humans, and how we respond may be making the problem worse. Read More »Preparing for a Flu Pandemic Scientists are studying the 1918 flu pandemic so we'll be ready for the next one. Read More »Deadly Crocodiles Down Under Australians try to live safely with giant saltwater reptiles that will eat just about anything—including people. Read More »The Limits of Facial Recognition Our incomplete understanding of how humans perceive faces may be hindering advances in automated face recognition. Read More »Manhunt—Boston Bombers Which technologies worked—and which didn't—in the race to track down the men behind the marathon attack? Read More »When to Worry About the Flu New strains are worrisome, but science offers a number of reasons why you shouldn't panic. Read More »Dual Epidemics Threaten Koalas Devastated by disease, an iconic Australian species gets help from science and the public. Read More »Plants with Family Values Scientists find that plants can act altruistically toward their siblings. Read More »Australia's "Magnetic" Termites Meet some tropical insects whose homes mysteriously point toward the poles. Read More »The Edge of the Solar System What is it like at the edge of interstellar space? And how will we know when the Voyager spacecraft reach it? Read More »The Looming Satellite Gap Many Earth-observing satellites are nearing the end of their lives. Read More » Experts Debate Dinosaur Stampede Millions of years ago in what is today Australia's Outback, a herd of dinosaurs left behind footprints in what has been interpreted as a stampede to escape a predator. A young researcher now suggests a very different interpretation. Read More » Preventing an Asteroid Strike Psychology, not technology, is delaying asteroid detection and deflection programs. Read More » Australia: Life Explodes Fossils reveal how life's explosion in the ocean was recreated on dry land. Read More »Meteor Strike A meteor burst into a fireball over Siberia. Can we spot the next deadly asteroid in time? Read More »The Higgs Boson...or a Higgs Boson? Is it the only one? And how will it change our understanding of the universe? Read More »Australia: Monsters Some 250 million years ago, some of the largest, most dangerous reptiles ruled this land. Read More »Australia: Awakening Australia's ancient landscape holds clues to Earth's early history and the beginning of life. Read More »Australia: Strange Creatures After a massive extinction, diverse marsupials came to dominate this isolated continent. Read More »Inside North Korea's Environmental Collapse Scientists who recently visited the hermit nation report the situation is dire. Read More » The Tongue-Eating Parasite Gross science: This parasite crawls into a fish's mouth and replaces its tongue. Enough said. Read More »NewsHour Newtown Coverage PBS takes a look at gun violence in America in the wake of the Newtown tragedy. Read More »Good Parents, Troubled Teens Miles O'Brien, producer of "Mind of a Rampage Killer," describes what it's like to meet the parents of troubled teens. Read More »Australia: First 4 Billion Years One of the strangest landscapes on Earth reveals our planet's complex history. Read More »New Species in the Old World The hunt is on to find undiscovered animal species in Europe. Read More »Digging Up Panama's Past An expansion of the Panama Canal is revealing the history of life on Earth. Read More »Earth From Space Detailed satellite images reveal the web of connections that sustain life on Earth. Read More »Mexico's Bat Man Biologist Rodrigo Medellin champions bat conservation and public education. Read More »When Hurricane Sandy Went Rogue What started out as a tropical storm evolved into one of New York City's worst nightmares. Read More »Collecting Rain in Mexico City A non-profit in Mexico City suggests using rainwater harvesting to remedy the city's water shortage. Read More »The Volga Trade Route The Vikings may have trekked all the way to Iran in search of crucible steel. Read More »Einstein's Brain Scientists search for the biological roots of genius in Einstein's brain. Read More » Memory vs. Intelligence David Pogue competes against the nation's top memory athletes and discovers their secrets. Read More »Science of Thanksgiving Turkey Find out how to make your Thanksgiving dinner even more scrumptious. Read More »New Ways to Use Drones Although pioneered by the military, unmanned aircraft could soon become a common part of civilian life. Read More »Profile: Sian Beilock Sian Beilock says that even the smartest brains fail to perform well under pressure. Read More »Mystery of the Savant Brain In the far off year of 5527, which day of the week will May 1st fall on? George Widener knows. Read More »Chariot Weapons A military historian demonstrates how the ancient Egyptians fought from their chariots. Read More » How Drones Change Everything Missy Cummings and other drone experts discuss the transformational nature of unmanned vehicles. Read More »GPS Pigeons Watch David Pogue struggle in a race against one of nature's most adept navigators. Read More »Parachute Problems NASA untangles why a parachute failed during testing prior to the Curiosity landing. Read More »Animal Morality That expression on your dog's face might say more about you than it does about her. Read More » Profile: Laurie Santos Laurie Santos looks for the origins of human social idiosyncrasies in rhesus macaques. Read More » Profile: Adrien Treuille The combined efforts of half a million video gamers could some day help cure a disease. Read More »A Look at Augmented Reality Our perceived world has gone beyond smart phones, goggles, and video games. Read More »Swarming Drones A University of Pennsylvania lab is developing tiny drones that sense their environment. Read More »How Dumb Are Drones? The real questions are, how autonomous are they now and how autonomous can they get? Read More »Scanning the Dead Virtual autopsies give coroners incredibly detailed and telling images of victims' bodies. Read More » Mind of a Rampage Killer Can science help us understand why some people commit horrific acts of mass murder? Read More »Profile: Zeresenay Alemseged Zeresenay Alemseged leads a new generation of African-born anthropologists. Read More »A Challenge for Humanoid Robots Walking might be easy for us, but it's a nightmare for a robot. Read More »Stone Age Language Mystery Could two of our species' achievements—tool use and language—be intimately connected? Read More »Neanderthals Defy Stereotypes A type of manufactured glue found on stone tools suggests Neanderthals were more advanced than previously thought. Read More »Profile: Tadayoshi Kohno Computer scientist Yoshi Kohno tries to stay one step ahead of hackers. Read More »Costa Rica's Hunting Ban The Central American nation is set to become the first in the region to outlaw sport hunting. Read More »A Neanderthal Burial Scientists think a posed body alongside a panther paw are evidence of Neanderthal rites. Read More »Death Detectives Murder investigations often hinge on one critical detail: When did the victim die? Read More »Secrets of Lie Detection Scientists are learning how to spot lies at their very source: inside the brain. Read More »Neanderthal Superglue This "superglue" suggests Neanderthals weren't as primitive as once thought. Read More »A Volcanic Labyrinth See the only place on the Earth where scientists can study a volcano from the inside. Read More » How Do We Perceive Risk? Why mass murders and other tragedies that kill scores of people make us most fearful. Read More »Criminal Minds: Born or Made? Scientists are using neuroimaging and genetic testing to uncover biological aggression. Read More »Building Pharaoh's Chariot A team uncovers the advanced engineering behind an ancient Egyptian war machine. Read More »Can Science Predict Mass Murder? Can science predict violent behavior and help prevent tragedies like Newtown, Connecticut? Read More »Who Killed Lindbergh's Baby? Expert investigators reexamine one of the greatest murder mysteries of all time. Read More »Rise of the Drones Meet a new breed of flying robots, from tiny swarming vehicles to giant unmanned planes. Read More »Decoding Neanderthals Shared DNA reveals a deep connection with our long-vanished human cousins. Read More »Doomsday Volcanoes Could the explosion of Iceland's ticking time bombs cause cold and famine worldwide? Read More » The Energy Lab Explore ways to make the most of renewable energy sources and use real data to design your own virtual power systems. Read More »Hurricanes and Climate Change Why we know climate change is making hurricanes more dangerous, even if it may not be making them more intense. Read More »Space Kids Engineers who landed the Curiosity rover on Mars recall their early love of space. Read More »Forecast for the Floodplains Urban development coupled with intense hurricanes is causing storm damage to ripple beyond the coastline. Read More »New Photos of Einstein's Brain Recently released brain images could provide fresh clues as to what made Einstein so smart. Read More »Storm Surges and New York City How multiple lines of defense, from massive barriers to oyster reefs, can protect our cities from storm surges. Read More »Climate Change and Sandy A climate scientist suggests that rapid warming in the Arctic helped create October's "superstorm." Read More » Engineering Extra Senses Cyberneticist Kevin Warwick is developing new ways for us to experience the world with more than just our five senses. Read More »Past Predictions: Expert QA Matt Novak, author of the Paleofuture blog, answers questions about how good (or bad) we are at predicting the future. Read More »Inside the Megastorm Watch as hurricane Sandy unfolds, and explore what made it so much more devastating than other hurricanes. Read More »The Clever Dog Lab An animal research laboratory in Vienna enlists local pets to study the roots of canine personality. Read More » What Are Dogs Thinking? Alexandra Horowitz, an expert in canine cognition, will answer questions submitted by November 9. Read More »What Does the Earth Sound Like? Twin satellites probing the Earth's radiation belts return the clearest recordings yet of a "chorus" of radio waves. Read More » Packaging You Can Eat A team of chefs, chemists, and designers introduce foods and beverages wrapped in edible shells. Read More » Cook's Illustrated: Sugar Because of its chemistry, sugar does a whole lot more than add sweetness. Read More »Cook's Illustrated: Burgers Learn how to make tender burgers at home, the scientific way. Read More »Food Science: Expert Q&A Michael Brenner, who teaches a Harvard class on the science of cooking, will answer questions submitted by November 2. Read More »Boosting Kids' Brain Power Could a brain-stimulating technique that uses an electrical current enhance math abilities in children? Read More »Three Advances in Forensics Sniffing, sifting, and sensing new ways to solve—and prevent—crime. Read More »Neuroprediction and Crime How much can brain imaging and genetic studies help in the fight against criminal behavior? Read More »Human Intelligence: Expert Q&A Fred Lepore, a neurologist who has studied Einstein's brain, will answer questions submitted by October 26. Read More »Ancient Computer A Greek shipwreck holds the remains of an intricate bronze machine that turns out to be the world's first computer. Read More »What Will the Future Be Like? Meet the people building tomorrow's robots, 3-D virtual environments, mind-reading machines, and more. Read More »Stable Isotopes in Forensics Investigators use elemental variations to unearth new leads. Read More »Secrets of the Viking Sword A modern-day swordsmith reverse engineers the ultimate weapon of the middle ages — a sword both prized and feared. Read More »Top 25 Worst Passwords Discover the 25 worst passwords, and learn how to keep your password safe from computer hackers. Read More »NOVA scienceNOW Facebook Quiz Test your smarts with our weekly NOVA scienceNOW Facebook quiz. Read More »Strands of Evidence Your hair may reveal more about you than you realize—including where you live and where you have been. Read More »Science and Crime: Expert Q&A Nita Farahany, an expert on using science in the criminal justice system, will answer questions submitted by October 19. Read More »What Makes Us Human? Find out if you're part Neanderthal, about the evolution of laughter, what language may owe to tool-making, and more. Read More »Social Skills: Kids vs. Apes To see what sets humans apart, anthropologist Victoria Wobber challenges young apes and children to do the same tasks. Read More »Mystery of Easter Island A team of scientists and volunteers test a theory on how the ancient stone statues were moved, using a 15-ton replica. Read More » Is Multitasking Bad For Us? Cognitive researchers have sobering though preliminary news—if we can focus on it. Read More »Neanderthals: Expert Q&A The leader of the team that proved we share DNA with Neanderthals will answer questions submitted by October 12 pm. Read More »Mapping the Brain Use some of the same imaging techniques neuroscientists use-from MRIs to PET scans-to see inside the human brain. Read More »How Smart Can We Get? See inside Einstein's brain, learn how to boost your memory, meet people who became savants after an injury, and more. Read More »Is a Calorie a Calorie? Do calories from a chocolate bar have the same effect on your waistline as an equal number of calories from an orange? Read More » Our Improbable Ability to Walk How do we two-legged, top-heavy pillars of flesh and bone possibly stay upright while in motion? Read More »Are Neanderthals Human? Neanderthals—and whether they, too, are human—present a conundrum well known in biology: What exactly is a species? Read More »The World Ant Tour American scientists visit European museums to photograph ants in exquisite detail. Read More »David Pogue's Brain Scan An anthropologist discovers something completely unexpected in David Pogue's brain scan. Read More »Waiting for Curiosity Producer Gail Willumsen reports from the Jet Propulsion Laboratory on the Curiosity rover's nail-biting Mars landing. Read More »How to Land a Mars Rover Rob Manning of the Curiosity team describes the feats of engineering required to land the Mars rover safely. Read More »Welcome to Mars, Curiosity! Senior Executive Producer, Paula Apsell, reports on the excitement and promise of the rover's successful landing. Read More »A Life-Changing Landing on Mars Planetary scientist Ashwin Vasavada reflects on life as a member of the Mars Science Laboratory team. Read More »NOVA Returns to Mars Hear from NOVA's Senior Executive Producer on the allure of the Red Planet, and watch a live webcast from the launch. Read More »An Interview With Sally Ride Watch an uncut interview with the late astronaut, conducted in 1984, and hear her views on being the first American woman in space. Read More »Cleaner Cookstoves in Uganda Changing the way women cook may help protect the environment and reduce the incidence of sexual assault in Uganda. Read More »Scientists Protest Lakes Closure A Canadian government decision to cease operating the Experimental Lakes Area provokes angry protests by scientists. Read More »Ultimate Mars Challenge In its search for life beyond Earth, NASA deploys a new "sky crane" to land the Curiosity rover on Mars. Read More »Forensics on Trial Virtual autopsies, 3-D fingerprints, and digital crime scenes are making crime-solving into a more precise science. Read More »Cornering the Higgs A professor from one of the CERN teams explains what this experimental result means for the future of physics. Read More »Higgs Boson Revealed Go behind the scenes at CERN for exclusive interviews with lead scientists on the historic July 4 announcement. Read More »The Higgs Boson Explained What is the Higgs boson? Physicist Frank Wilczek explains how the Higgs may help complete the Standard Model of physics. Read More »The Higgs Particle Matters Learn how Peter Higgs' ideas about matter transformed our understanding of space. Read More »Live Webcasts: The Latest Higgs Results Tune in to see scientists announce their latest findings in the ongoing search for the elusive Higgs boson. Read More » Gamers and Genomics An online game called Phylo taps the brainpower of thousands of players to solve complex problems in genetics. Read More »The Sun Lab Research solar storms using images from NASA telescopes; share your work; and find out about careers in science. Read More »Making Chemicals Naturally A pioneer in the field of green chemistry explains how copying Nature's methods to make chemicals is safer and cheaper. Read More »NOVA Elements iPad App Explore an interactive periodic table, combine elements to make real stuff, and watch the two-hour NOVA program. Read More »Magnetic Fish Hooks Save Sharks A chance discovery that sharks avoid rare earth magnets may help protect them from over-fishing. Read More »Elemental Bloopers Watch David Pogue's hilarious out-takes from NOVA's "Hunting the Elements." Read More »Elements in the Ocean Marine geochemist Catherine Jeandel has bottled the world's oceans to decipher their past—and future. Read More »A Higgs by Any Other Name How did the Higgs boson get its name? Discovery why many scientists, including Higgs himself, want to rename it. Read More »Name That Element! Think you know the periodic table? See how quickly you can name the mystery elements we describe. Read More »A Gene for Fish Odor The discovery of a gene that explains an embarrassing body odor offers a little comfort to those who suffer. Read More »Chemotherapy and Breast Cancer For some breast cancer patients, chemotherapy isn't always necessary. Read More »Genetic Testing Dilemmas Would you take a test that could tell you more about your future health? Read More »Extract Your Own DNA Behold your very own DNA in this do-it-yourself science experiment. Read More » B-29: Frozen in Time An abandoned B-29 bomber in Greenland is brought back to life after more than 50 years. Read More »Drinking Mastodon Juice Forget Happy Hour. These scientists drink water trapped in Ice Age bones. Read More »Deadliest Tornadoes Why was the 2011 tornado season in the U.S. so extreme, and, with advanced warning systems, why did so many die? Read More »Cracking Your Genetic Code We are on the brink of a new era of personalized, gene-based medicine. Are we ready for it? Read More »Secrets of the Sun With new tools, scientists are striving to better grasp our star and its potentially widely destructive solar storms. Read More »Separating Twins Follow the amazing story of Trishna and Krishna, girls born joined at the head, as surgeons prepare to separate them. Read More »Mystery of a Masterpiece Art experts investigate whether a portrait sold for about $20,000 in 2008 is actually a lost Leonardo worth millions. Read More »Light My Fire What do you get when you introduce a chunk of sodium to a Bunsen burner? Sizzling romance. Read More »Deadliest Volcanoes From Japan's Mt. Fuji to Yellowstone's buried supervolcano, how can we best prepare for the most lethal eruptions? Read More »Ice Age Death Trap Scientists race to uncover a site in the Rockies packed with fossil mammoths and other extinct ice age beasts. Read More »Bombing Hitler's Dams Experts recreate the bold feat of "dambuster" pilots who used bouncing bombs to destroy two key German dams in WWII. Read More »3D Spies of WWII With 3D graphics, NOVA reveals how the Allies used special aerial photos to deal a dire blow to the Nazi rocket program. Read More »Fabric: Quantum Leap The Fabric of the Cosmos, Hour 3: Take a wild ride into the quantum realm, where even the impossible seems possible. Read More » Jim Gates on Space Physicist Jim Gates says that even if you took all the matter out of the universe, space still wouldn't be empty. Read More »Max Tegmark on Time Physicist Max Tegmark says that time is still one of the biggest mysteries in physics. Read More »Steven Weinberg on Space The concept of "space" is a tough one to explain, even for a Nobel prize-winning physicist. Read More »Peter Galison on Time Physicist Peter Galison says that humans sense time as moving constantly forward, but it doesn't really work that way. Read More »Sean Carroll on Time Physicist Sean Carroll says there's no such thing as past or future in the elementary laws of physics. Read More »Leonard Susskind on Space Physicist Leonard Susskind says that Einstein's equations show that space exists, but they don't explain what it is. Read More »Describing Nature With Math How do scientists use mathematics to define reality? And why? Read More »Janna Levin on Space and Time Physicist Janna Levin says that Einstein and Newton had very different ideas about what space and time really are. Read More »Fabric: The Illusion of Time The Fabric of the Cosmos, Hour 2: It defines our lives, but what is time really? Have a look into its true nature. Read More »Alan Guth on Space Physicist Alan Guth says that the concept of "space" is more complicated than you might think. Read More »Fabric of the Cosmos: What is Space? The Fabric of the Cosmos, Hour 1: Surprising clues indicate that space is very much something and not nothing. Read More » The Making of the Quantum Club Take a behind-the-scenes look at this animated sequence from "The Fabric of the Cosmos." Read More »The Fabric of the Cosmos Acclaimed physicist Brian Greene reveals a mind-boggling reality beneath the surface of our world. Read More »Looking for ET It's not easy to look for alien intelligence, but scientists like Seth Shostak believe that's no reason not to try. Read More »Beliefs About Alien Intelligence Is the search for extraterrestrial intelligence pseudoscience, protoscience, or science? Read More »How Rare Is the Earth? Simple life may exist throughout the universe, says paleontologist Peter Ward, but complex life is likely another story. Read More »A Cosmic Crossword Try your hand at NOVA's first crossword puzzle. It's fast, physics-based, and fun. Read More » Life in the Solar System The head of the Cassini Mission says Saturn's moon Enceladus is the go-to place in the solar system for finding life. Read More »Finding Earth Like Planets Learn how to find signs of extraterrestrial life in our galaxy without leaving home. Read More »An Interview With Steve Jobs Watch a rare interview with the late Apple visionary, conducted in 1990, and see how remarkably prescient he was. Read More »Build a Bridge You're a civil engineer. Four bridges need to go up. Only you can decide which kind to use where. Read More » On Being a Physicist Columbia's Brian Greene explains why history's greatest scientific thinkers, from Newton to Feynman, became his heroes. Read More »A Trip Through Spacetime Join Albert Einstein on a high-speed cab ride to see why space and time are truly in the eye of the beholder. Read More »Spooky Action at a Distance That's what Einstein called it, dismissively, but ultra-strange quantum entanglement does exist, Brian Greene writes. Read More »Reflections on the 9/11 Memorial Visitors to the newly opened 9/11 memorial share their impressions. Read More »Special Relativity in a Nutshell Brian Greene explains Einstein's notion of the mutability of space and time in a way you can readily understand it. Read More »The Spacetime Lemonade Stand Thirsty for understanding? See how well people on the street can explain spacetime. Read More »Rebuilding 7 World Trade Center Developer Larry Silverstein explains what's different about the new 7 World Trade Center. Read More » Walls of Glass One World Trade Center's glass façade may look fragile, but it is extraordinarily tough. Read More » Solving an Engineering Problem Bracing One World Trade Center's steel frame led to some unexpected perks at the worksite. Read More »The 9/11 Memorial Mock-Up Architect and designer Michael Arad takes us on a tour of his 9/11 Memorial mock-up. Read More »Riddles of the Multiverse USC theoretical physicist Clifford Johnson contemplates the controversial notion of multiple universes. Read More »Surviving the Tsunami Gripping personal stories from Japan offer lessons on how to act in the face of a life-threatening disaster. Read More »"Fringe" Science How does the sci-fi series "Fringe" draw inspiration from real quantum physics and cutting-edge research? Read More »A Quantum Leap in Computing MIT's Seth Lloyd, a pioneer of quantum computing, explains its applications and revolutionary potential. Read More »Engineering Ground Zero Designing and building One World Trade Center and the National September 11 Memorial & Museum Read More »Iceman Murder Mystery A new forensic investigation of a 5,000-year-old mummy reconstructs his death and reveals an ancient way of life. Read More »Putting Relativity to the Test Nearly a century after Einstein published his general theory, experiments continue to confirm its every prediction. Read More »Finding Life Beyond Earth Scientists are on the verge of answering one of the greatest questions in history: Are we alone? Read More »Explore Ancient Egypt With 360-degree and other imagery, walk around the Sphinx, enter the Great Pyramid, visit tombs and temples, and more. Read More »It's Elemental In this interactive periodic table, explore the elements and their properties and abundances. Read More »The Fabric of the Cosmos Acclaimed physicist Brian Greene reveals a mind-boggling reality beneath the surface of our everyday world. Read More »The Many Gods of Israel Archeologist Bill Dever says that polytheism may have been the norm in ancient Israel. Read More »Write Your Name in Runes See your name spelled in runes and learn the meaning of each of the letters in the Viking alphabet. Read More »Profile: Katharine Hayhoe Katharine Hayhoe is an evangelical Christian as well as a climate scientist concerned about the impacts of global warming. Read More »Tour the Solar System Explore the planets, visit the moon, and gaze at the stars in this 3-D interactive model of the solar system. Read More »A Clean Energy Future? Developing clean energy technologies makes sense not only environmentally but economically, Nobelist Steven Chu argues. Read More »A Strict Carbon Diet Inventor and engineer Saul Griffith has put himself and his family on a strict regime to reduce their carbon footprint. Read More »Green Energy in China China is ramping up production of solar technology and smart electric grids, but coal power remains king. Read More »Map of the Human Heart See exactly how your heart pumps blood throughout your body and learn astounding facts about the human heart. Read More »Improving Maternal Health In the year 2000, the U.N. set out to make maternal health care a universal right. Where does that goal stand today? Read More »Profile: Alan Sage Alan Sage writes poetry, raps fiercely, and explores the "root memory" of plants. Meet him on "Secret Life." Read More » Profile: Emily Whiting Emily Whiting, an architectural engineer and avid rock climber, knows how to keep things in balance. Read More »Inside a Nuclear Control Room Explore a panoramic image of the control room at the Pilgrim Nuclear Power Station's training simulator. Read More »Training for a Nuclear Crisis Are workers at U.S. nuclear power plants prepared to deal with earthquakes, tsunamis, and other disasters? Read More »Japan's Killer Quake An eyewitness account and investigation of the epic earthquake, tsunami, and nuclear crisis Read More »Profile: Dave Sulzer Dave Sulzer studies diseases of the brain and how brain cells communicate. He has also conducted an elephant orchestra. Read More »Profile: Shaundra Daily This software engineer and dancer found her groove teaching children about their emotional lives. Read More » Venom's Healing Bite Toxic compounds in animal venom could yield new drugs for heart disease, cancer, and chronic pain. Read More »Cars That Power the Grid Electric cars that feed energy back to the power grid may play a critical role in a future "smart grid." Read More » The Risks of Automated Flight Aviation safety expert Bill Voss thinks airlines should change the way they train pilots. Read More »When Lightning Strikes Aircraft An aviation safety expert and a veteran airline pilot weigh in on the effects of lightning strikes during flight. Read More »The Secret Life of Andre Fenton Andre Fenton studies the biological basis of human memory. And he never forgets to find some quiet time to meditate. Read More » Getting Computers to See Vision as we know it remains elusive for machines. But as this video short shows, they are starting to get the picture. Read More » Chemical Bonds Quiz Explore what holds atoms together to form the myriad chemical substances found in our world. Read More »Solar Sails NASA engineer Dean Alhorn says that some future spacecraft may be propelled by the sun's rays. Read More » Profile: Steffie Tomson Neuroscientist Steffie Tomson doesn't just study the bizarre phenomena of synesthesia, she's a synesthete herself. Read More »Artificial Intelligence Pioneer MIT's Marvin Minsky, one of the fathers of AI, expounds on the current state of the field and hopes for its future. Read More »Soccer-Playing Robots These completely autonomous ball-kickers are irresistible to watch—and may represent a major step forward in AI. Read More » Smartest Machine: Expert Q&A The head of the AI team that programmed the computer "Watson" to compete on Jeopardy! answers questions. Read More »The Uses of TMS: Expert Q&A Have questions about transcranial magnetic stimulation (TMS) and how it treats depression? Ask an expert. Read More »Will Watson Win on Jeopardy!? Three artificial-intelligence experts, including the leader of the Watson team, discuss the supercomputer's prospects. Read More »What Is Intelligence? Hear Steven Pinker, Rodney Brooks, and other experts offer their insights on what it means to be smart. Read More »Suspended Animation Cell biologist Mark Roth says that suspended animation isn't just science fiction. Read More » Profile: Judy Lee Judy Lee designs and engineers all kinds of consumer products. Outside of her day job, she hosts a TV show for kids. Read More »The Dangers of Nanotech Nanomaterials are used in consumer goods from cell phones to sunscreen. But how safe are they? Read More »Ethics of Erasing Memory Bioethicist Art Caplan says that memory-altering drugs raise major ethical questions. Read More »Venom: Nature's Killer Hunting down the most venomous animals to reveal their medical mysteries Read More »What's This Stuff? Contest Think you know your stuff? Be the first to identify 10 mystery materials and win a MacBook Air and meet David Pogue. Read More »Bugs That Live on You From bed bugs to eyelash mites, a jungle of insects and arachnids thrives on and around the human body. Read More »The Stuff of Smartphones See the materials and technologies that go into a smartphone as well as their environmental impact. Read More »Smartest Machine on Earth Jeopardy! challenges even the best human minds. Can a computer win the game? Read More »Profile: Michio Kaku Physicist Michio Kaku's dream is to find the "unified theory of everything." But he does take breaks to go figure skating. Read More »What's the Next Big Thing? Greet the future: social robots, a "smart" electric grid, microbes that make diesel fuel, and more. Read More »Can We Live Forever? Explore artificial organs, suspended animation, genes that impact aging, and lifelike avatars. Read More »Where Did We Come From? Explore the origin of our solar system and the start of life itself, how head lice figure in human evolution, and more. Read More »How Does the Brain Work? Investigate the psychology of magic tricks, magnetic wands that treat depression, artificial intelligence, and more. Read More »How Smart Are Animals? Dogs, dolphins, parrots, and even octopuses (mere mollusks!) may be smarter than you think. Read More »Putting Bacteria to Work Bacteria help us in all kinds of ways, from fermenting foods to aiding medicine, cleaning oil spills to mining minerals. Read More »Can We Make It to Mars? See new space suits, foods, and rockets that may support future Mars-bound astronauts, and meet a Mars rover driver. Read More » Toward a Smart Electric Grid Should the U.S. be upgrading now to a "smart" electric grid? An energy expert insists there's no time to lose. Read More »Making Stuff: Smaller Future technologies will depend on tiny stuff—from silicon chips to micro-robots that probe the human body. Read More »The Psychology of Spaceflight NASA psychologist Al Holland says that a three-year return trip to Mars would be a mental challenge for any astronaut. Read More »Making Stuff: Smarter Explore a new generation of ingenious materials, from clothes that monitor your mood to real-life invisibility cloaks. Read More »Making Stuff: Cleaner Can innovative materials help solve the energy crisis and lead to a sustainable future? David Pogue investigates. Read More »Making Stuff: Stronger David Pogue tests his mettle against the world's strongest stuff, from steel and Kevlar to bioengineered silk. Read More » Materials That Changed History From ceramics to steel, paper to plastics, certain basic substances have long propped up civilization. Read More »Magic and Autism A magician's sleight of hand may not fool people with autism, who may benefit from learning social cues found in magic. Read More »Cosmic Ray Danger Berries and other foods containing antioxidants may alleviate cellular damage caused by cosmic radiation. Read More »The Star in You Just what do astronomers mean when they say we're all made of star stuff? Read More »Profile: Allan Adams A physicist with a love for waves, Allan Adams doesn't need an engine to fly—he's a glider pilot. Read More » The World's Strongest Stuff From diamonds to spider silk, see some of the hardest, strongest, and toughest materials on Earth. Read More »A Mission To Mars Former astronaut Buzz Aldrin says that a human presence on Mars is inevitable. Read More » Historic Spacesuits See classic images from Projects Mercury, Gemini, and Apollo as well as space-suit prototypes that never made the cut. Read More »A One-Way Trip to Mars? Initial shock aside, some space scientists argue this is the only way to go. Read More » Nature's Super-Materials See some of Nature's stickiest, toughest, and cleanest materials, and learn how they are inspiring new products. Read More »The Meaning of Dog Barks Listen to a variety of dog barks—from woofs to whines—and try to interpret their meaning. Read More »Rescuing the Miners Hear from Greg Hall, the drilling expert whose team reached 33 Chilean miners trapped more than 2,000 feet underground. Read More » Sacred Architecture When designing Gothic cathedrals, some medieval builders drew on sacred measurements laid out in the pages of the Bible. Read More »Europe's Mysterious Megaliths View a slide show of stone circles and other prehistoric ceremonial sites stretching from Scotland to Malta. Read More » Profile: Rachel Collins A microbiologist by day and a professional wrestler on weekends, Rachel Collins is also known as "MsChif." Read More »Mt. St. Helens: Back From the Dead: Watch the Program Watch the program online on PBS.org now Read More » Mind Over Money: The Deciding Factor A new study at Harvard is exploring how emotions affect our decisions, whether we like it or not. Read More »Hunting the Edge of Space: Part 2: Watch the Program Watch the program online on PBS.org now Read More »Hunting the Edge of Space: Part 1: Watch the Program Watch the program online on PBS.org now Read More »Hunting the Edge of Space: The Founders of Modern Astronomy William Herschel often gets the credit, but his sister Caroline was also a pioneer astronomer. Read More »Hunting the Edge of Space: Giant Telescopes of Tomorrow Immense optical and radio telescopes now in the works promise to make astonishing discoveries about the cosmos. Read More » The Pluto Files: In Defense of Pluto Alan Stern, head of NASA's new mission to Pluto, stands up for the little guy. Read More »The Pluto Files: What's Your Favorite Planet? Listen in as 11 planetary scientists make pitches for the "best" planet, then vote yourself. Read More »The Pluto Files: My Dad Discovered Pluto How did Clyde Tombaugh go from baling hay to finding Pluto? In this slide show, his son Alden reflects. Read More »The Pluto Files: Can You Remember the Planets? Share your ideas for new ways to remember planet names. Read More »The Pluto Files: Hate Mail from Third Graders See what some outraged, but loving, kids had to say to Neil about "demoting" Pluto. Read More » Extreme Cave Diving: TV Program Description In a daring work of filmmaking, NOVA follows a scientific expedition into watery caves that hold clues to the future of our climate. Read More »Extreme Cave Diving: Links and Books Find resources on cave diving, the biology and geology of blue holes, and more. Read More »Extreme Cave Diving: Risking it all for Science What drives scientists to delve into flooded caves where they face rock falls, nitrogen narcosis, even drowning? Read More »Extreme Cave Diving: Creatures of the Underwater Caves The "blue holes" of the Bahamas harbor animals seen nowhere else on the planet. Read More » Ghosts of Machu Picchu: Inca Skull Surgery In this audio slide show, see evidence of a radical surgical procedure common among the Inca 500 years ago. Read More »Ghosts of Machu Picchu: Outfitting for Battle Inca and conquistador soldiers had very different gear—and that made all the difference. Read More »Ghosts of Machu Picchu: Rise of the Inca How did the Inca Empire become as vast as the Roman in just over a century? Read More »Ghosts of Machu Picchu: A Marvel of Inca Engineering Perched high in the Andes, Machu Picchu required ingenious construction, as engineer Ken Wright explains. Read More »Riddles of the Sphinx: Excavating the Lost City Egyptologist Mark Lehner describes the lives of the pyramid-builders, as revealed in his ongoing excavation at Giza. Read More »The Pluto Files: Notes From the Pluto Files Hear Neil describe what it was like to meet Clyde Tombaugh's family and other people passionate about Pluto. Read More »The Pluto Files: TV Program Description Learn more about Neil's adventures as he toured the country and explored why scientists and schoolkids alike are still debating Pluto. Read More »Riddles of the Sphinx: The Dream Stela of Thutmosis IV Egyptologist Kasia Szpakowska decodes a mysterious stone monument erected between the Sphinx's front paws. Read More »Riddles of the Sphinx: Explore the Giza Plateau Savor 360° and other striking panoramas of the Sphinx and the Great Pyramids. Read More »Riddles of the Sphinx: Saving the Sphinx Zahi Hawass, head of Egypt's Supreme Council of Antiquities, has taken extraordinary steps to preserve this timeless sculpture. Read More »Building Pharaoh's Ship: Where is Punt? Despite heaps of evidence and decades of debate, scholars are not certain where or even what Punt was. Why? Read More »Building Pharaoh's Ship: The Expedition to Punt Follow an Egyptian pharaoh's voyage to the fabled Land of Punt, as chronicled in an ancient wall carving. Read More »Building Pharaoh's Ship: Anatomy of the Punt Ship Click on parts of the reconstructed vessel and see how they compare to archeological finds. Read More »Building Pharaoh's Ship: Explore a Pharaoh's Boat Examine a masterpiece of ancient shipbuilding found a half century ago buried beside the Great Pyramid. Read More »Killer Subs in Pearl Harbor: The Threat of Midget Subs Today Iran and North Korea have them, as do drug smugglers. How grave is the danger? Read More »Killer Subs in Pearl Harbor: Pearl Harbor Sub Discovered In this podcast, hear how a newly identified wreck found outside the harbor may rewrite the history of the Japanese attack. Read More »Killer Subs in Pearl Harbor: Share Your Story Were you or someone you know a witness to the Pearl Harbor attack? We'd like to hear your story. Read More »Killer Subs in Pearl Harbor: Yamato's Final Voyage Relive the supership's last moments as American warplanes relentlessly strafed, bombed, and torpedoed it. Read More »Killer Subs in Pearl Harbor: Japan's Midget Sub A 3-D model offers a detailed look at the tiny sub that carried torpedoes into Pearl Harbor. Read More »Killer Subs in Pearl Harbor: Anatomy of Yamato Explore another marvel of Japanese WWII technology, the largest battleship ever built. Read More »What Are Dreams?: Ask the Expert Harvard neuroscientist Robert Stickgold answers e-mailed questions about sleep and dreaming. Read More »What Are Dreams?: TV Program Description NOVA looks at the latest in the scientific quest to understand dreams. Read More »What Are Dreams?: Links & Books Find more information—including some practical tips—on sleep, sleep disorders, and dreaming. Read More »What Are Dreams?: The Sleep-Memory Connection Explore the stages of a good night's sleep and the research linking sleep to memory. Read More » Hubble's Amazing Rescue: Follow the Hubble Repair NOVA producer Rush DeNooyer offers a day-by-day view of the 2009 mission from the inside. Read More »Hubble's Amazing Rescue: Ask the Experts On the NOVA scienceNOW website, astronauts John Grunsfeld and Mike Massimino answer questions. Read More »Hubble's Amazing Rescue: TV Program Description In this film, follow the 12-day Space Telescope mission and its five nailbiting spacewalks. Read More »Hubble's Amazing Rescue: Saving Hubble Update Find links to our NOVA scienceNOW segments on the Hubble repair, a feature on Hubble's famous image of the Eagle Nebula, and more. Read More » Lizard Kings: Wild Lizard Chase In this slide show, producer Gisela Kaufmann illustrates the challenges of filming monitors, the planet's wiliest lizards. Read More »Lizard Kings: Links & Books Find links to websites and articles, as well as suggested books, about monitor lizards and those who study them. Read More »Darwin's Darkest Hour: Being Charles Darwin Stepping into Darwin's shoes changed actor Henry Ian Cusick's views both about the man and evolution. Read More »Darwin's Darkest Hour: Explore the Galapagos With this multimedia map, see the islands as they are today and learn how they inspired Darwin Read More »Darwin's Darkest Hour: Great Minds Think Alike The story of how Alfred Russel Wallace independently arrived at the same earth-shaking conclusions as Darwin Read More »Darwin's Darkest Hour: Capturing Darwin's Dilemma Scriptwriter John Goldsmith on the historical research behind "Darwin's Darkest Hour" Read More »Darwin's Darkest Hour: Darwin's Predictions Over 150 years later, science continues to confirm most of Darwin's conjectures. Read More »NOVA scienceNOW: Profile: Luis von Ahn A computer scientist finds novel ways to stop spammers and harness the brainpower of millions of people. Read More »Musical Minds: Watch the Program This one-hour program is divided into six chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »NOVA scienceNOW: Auto-Tune Can't carry a tune? Andy Hildebrand's pitch-correction software can help you sing like a star. Read More »NOVA scienceNOW: Diamond Factory Visit a laboratory where entrepreneurs are growing perfectly pure diamonds. Read More »NOVA scienceNOW: Anthrax Investigation The new science of microbial forensics reveals the source of the anthrax used in the deadly attacks of 2001. Read More »Musical Minds: Video Extra See an expanded version of the film's sequence on Oliver Sacks's brain as it reacts to different pieces of music. Read More »Musical Minds: Ask the Expert Oliver Sacks answers questions about why music affects the brain, how it can treat some neurologic disorders, and more. Read More »Doctors' Diaries: Watch the Program Both Hour 1 and Hour 2 of this two-part program are divided into chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »Last Extinction: Watch the Program This one-hour program is divided into six chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »Extreme Ice: Watch the Program This one-hour program is divided into six chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »Last Extinction: Extraordinary Artifacts Ten exquisite Clovis stone tools reveal the artistry of America's early flintknappers. Read More »Last Extinction: Stone Age Toolkit Would you know how to use an ancient stone tool if you unearthed one? Try your hand here. Read More »Last Extinction: Modeling a Comet Airburst In this video clip, see why an explosion three miles above Earth would act like a white-hot tornado on the surface. Read More »Last Extinction: The Extinction Debate Follow the heated, decades-long controversy over North America's Ice Age extinctions. Read More »Last Extinction: End of the Big Beasts Overhunting, climate change, disease, and now a comet. What did kill off the megafauna? Read More »Last Extinction: Before Clovis Were people in North America long before the so-called "first Americans"? Explore an interactive map. Read More »Doctors' Diaries: The Hippocratic Oath Today Abortion, euthanasia, etc. See why the oath is controversial, then tell us what you think. Read More »Doctors' Diaries: Doctors' Lives Videos Through bonus video and interviews, explore seven journeys from medical school to midlife. Read More »Doctors' Diaries: M.D. Specialties From anesthesiology to urology, med students have more than 20 fields to choose from. Read More »Doctors' Diaries: One Night in an E.R. Join a Friday-night shift behind the swinging doors at Massachusetts General Hospital. Read More »Doctors' Diaries: The Producer's Story Michael Barnes once thought he wanted to go to med school. After making this series, does he still? Read More »Rat Attack: Watch the Program This one-hour program is divided into six chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »Extreme Ice: Photographing the Big Melt James Balog describes his Extreme Ice Survey in this audio slide show. Read More »Extreme Ice: On Thin Ice in the Bering Sea Watch a short video series on how the melting is affecting Yup'ik Eskimos. Read More » Extreme Ice: Mapping Sea-Level Rise See the impact on the world's coastlines if Greenland's ice sheet melted. Read More »Rat Attack: Killer Instinct Rats do it to survive, but why is infanticide so widespread among primates, and what does that say about us? Read More »Rat Attack: Plant vs. Predator Ecologist Dan Janzen demystifies the once-a-half-century mass seeding and its stupendous impact. Read More »Rat Attack: Population Explosion In this interactive, trace the effects of the best-understood mass seeding of all, that of oak-tree acorns. Read More »Rat Attack: The Producer's Story A rat in his bed. Rats for dinner. Milking rats. All par for the course while filming "Rat Attack." Read More »The Spy Factory: Watch the Program This one-hour program is divided into five chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »The Incredible Journey of the Butterflies: Watch the Program This one-hour program is divided into six chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »The Spy Factory: Ask the Expert Author James Bamford answers viewer questions about the NSA, 9/11, and more. Read More »The Spy Factory: Decoding Speech If you think computers can easily recognize and transcribe spoken language, think again. Read More »The Spy Factory: The New Thought Police George Orwell's secret police have nothing on two new NSA systems designed to read people's minds. Read More »The Spy Factory: Investigating 9/11 Eleanor Hill, who led congressional hearings on the attacks, discusses pre-9/11 intelligence failures in this interview. Read More »The Big Energy Gamble: Watch the Program This one-hour program is divided into six chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »The Big Energy Gamble: Put a Lid on it In this video, Bill Nye, TV's "Science Guy," conducts a pasta-making experiment that can save energy. Read More »The Big Energy Gamble: The Governator Arnold Schwarzenegger remains fearless about his state's energy bet. Read More »The Big Energy Gamble: Powering Down In this online diary, follow one NOVA staffer's efforts to reduce her energy consumption. Read More »The Big Energy Gamble: Ask the Experts Ed Begley, Jr. and Bill Nye field viewer questions about living "la vida verde." Read More »The Big Energy Gamble: The Skeptic Marlo Lewis of the Competitive Enterprise Institute warns that the state's green agenda could lead to economic ruin. Read More »The Big Energy Gamble: The Journalist Marlo Lewis of the Competitive Enterprise Institute warns that the state's green agenda could lead to economic ruin. Read More »Is There Life on Mars?: Watch the Program This one-hour program is divided into six chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »Is There Life on Mars?: Martian Weather Is the weather on Mars anything like the weather on Earth? Find out in this video. Read More »The Incredible Journey of the Butterflies: The Director's Story Nick de Pencier describes his attempts to fly like a butterfly and other adventures making the film. Read More »Is There Life on Mars?: Man on a Mission In this January 2003 interview, lead scientist Steve Squyres reveals his hopes and fears for the rovers. Read More »Is There Life on Mars?: "Live" From Mars Read Twitter feeds from Phoenix, the rovers, and the Mars Science Lab. Read More »Is There Life on Mars?: Mars Up Close In late 2004, Steve Squyres narrates this visual tour of some of the rovers' most revealing discoveries. Read More »Is There Life on Mars?: From Launch to Landing Watch two animations, one each of Spirit and Phoenix, showing their fantastic journey from Earth to Mars. Read More »Is There Life on Mars?: Mars From Afar See some of the finest images ever taken of the martian surface, including Phoenix's most famous. Read More »Is There Life on Mars?: Design a Parachute Create a parachute strong and light enough to safely slow the rovers in their descent toward Mars. Read More »Is There Life on Mars?: Behind the Scenes Mark Davis, producer of "MARS Dead or Alive," recalls filming alongside the rover team between 2002 and 2004. Read More »Is There Life on Mars?: Anatomy of a Rover Examine the robotic geologists and their suite of scientific instruments. Read More »Is There Life on Mars?: Life's Little Essential Everybody knows that liquid water is necessary for life, at least as we know it. But just why exactly? Read More »Is There Life on Mars?: Ask the Expert Dr. Leslie Tamppari of the Mars Phoenix Lander mission answers viewer questions. Read More »Ocean Animal Emergency: Watch the Program This one-hour program is divided into six chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »The Bible's Buried Secrets: Video Extras A sampling of additional sequences from the edit room. Read More »The Bible's Buried Secrets: Watch the Program This two-hour program is divided into thirteen chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »The Bible's Buried Secrets: Radiocarbon Dating What is carbon-14 anyway, and how can it reveal the date of an ancient artifact? Read More »Alien From Earth: Watch the Program This one-hour program is divided into six chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »Ocean Animal Emergency: The Producer's Story Doug Hamilton recounts an eye-opening trip to Greenland, where sealskins upholster benches in the airport lounge. Read More »The Bible's Buried Secrets: Behind the Scenes In these videos, find out how the filmmakers created a 3-D Bible, portrayed the biblical writers, and reconstructed Solomon's temple. Read More »The Bible's Buried Secrets: Religious Perspectives Hear what members of the clergy, representing a variety of faiths, have to say about the program. Read More »Alien From Earth: Compare the Brains How does the hobbit's brain measure up to those of a modern human, a chimp, and others? Read More »Alien From Earth: Who's Who in Human Evolution? Meet your increasingly distant cousins in this clickable illustration of the past seven million years. Read More »Alien From Earth: Gigantism and Dwarfism on Islands Why do many animal species become either larger or smaller on islands over time? Read More »Alien From Earth: Ask the Expert Mike Morwood, coleader of the team that discovered the hobbit, answers viewer questions. Read More »The Bible's Buried Secrets: Archeology of the Hebrew Bible William Dever says that attempts to "prove the Bible" are misguided. Read More »The Bible's Buried Secrets: Senior Executive Producer's Story In this FAQ, Paula S. Apsell explains NOVA's approach to covering biblical archeology. Read More »The Bible's Buried Secrets: Moses and the Exodus Carol Meyers offers a new and surprising view of the iconic exodus from Egypt. Read More »The Bible's Buried Secrets: Ask the Experts Have questions about biblical archeology, the ancient Israelites, or the origins of the Hebrew Bible? E-mail them here. Read More »The Bible's Buried Secrets: Who Wrote the Flood Story? Examine evidence suggesting that at least two sources contributed to the famous story of Noah. Read More »The Bible's Buried Secrets: Origins of the Written Bible William Schniedewind charts the rise of literacy in the Israelite world, making Holy Scripture possible. Read More »The Bible's Buried Secrets: Writers of the Bible Michael Coogan sees the Bible as an anthology of texts composed over centuries. Read More »The Bible's Buried Secrets: The Palace of David Eilat Mazar has unearthed what she believes is the royal house of King David. Read More »The Bible's Buried Secrets: The Foundation of Judaism Shaye Cohen looks at how a pagan practice became a religion devoted to one God. Read More »The Bible's Buried Secrets: Archeological Evidence On this time line, explore discoveries related to the earliest Israelites, the writing of the Bible, and the birth of monotheism. Read More »Hunting the Hidden Dimension: Watch the Program This one-hour program is divided into five chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »Parallel Worlds, Parallel Lives: Watch the Program This one-hour program is divided into five chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »Hunting the Hidden Dimension: The Most Famous Fractal What exactly is the Mandelbrot set? Find out in this excerpt from the book Fractals: The Patterns of Chaos. Read More »Hunting the Hidden Dimension: Design a Fractal Create and save your own wildly colorful fractals using our generator. Read More »Hunting the Hidden Dimension: A Sense of Scale Explore the infinite detail of a Mandelbrot set as you zoom to a magnification of 250,000,000x. Read More »Hunting the Hidden Dimension: A Radical Mind Benoit Mandelbrot is a true maverick, as his interview reveals. Read More »Space Shuttle Disaster: Force of Impact How could a lightweight piece of debris cause catastrophic damage? Find out in this simulation of the shuttle's launch. Read More »Space Shuttle Disaster: Rescue Scenarios Follow, day by day, how a high-risk effort to save Columbia's crew in space might have unfolded. Read More »Space Shuttle Disaster: The Insider Who Knew NASA engineer Rodney Rocha, whose warnings and calls for action went unheeded, speaks out about the disaster. Read More »Space Shuttle Disaster: Watch the Program This one-hour program is divided into five chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »Space Shuttle Disaster: The Case to Save the Shuttle Program Allen Richardson, 30 years in Boeing's space operations, offers arguments for continuing shuttle missions beyond 2010. Read More »Space Shuttle Disaster: The Investigator Scott Hubbard, a veteran leader of space missions, fought denial with hard evidence to convince NASA of the accident's cause. Read More »Parallel Worlds, Parallel Lives: Finding My Father At 18, Mark Everett discovered his father's body. At 40-something, he discovered who his father really was. Read More »Parallel Worlds, Parallel Lives: The Theory Today What is the Many Worlds theory, and do physicists buy it? Hear from Everett's biographer, Peter Byrne. Read More »Parallel Worlds, Parallel Lives: Science Fiction and Fact Follow a time line of parallel worlds—those of sci-fi and quantum physics. Read More »Parallel Worlds, Parallel Lives: Read Original Documents Everett's personality shines forth in two never-before-published pieces of writing. Read More »Parallel Worlds, Parallel Lives: Everett's Dissertation If you dare, explore Everett's original thesis, published online for the first time. (PDF) Read More »Arctic Dinosaurs: The Producer's Story On Alaska's North Slope, Chris Schmidt quickly realized that one wrong step could spell disaster. Read More »Arctic Dinosaurs: Watch the Program This one-hour program is divided into six chapters. Choose any chapter below and select QuickTime or Windows Media Player to begin viewing the video. If you experience difficulty viewing, it may be due to high demand. We regret this and suggest you try back at another time. Read More »NOVA scienceNOW: Mammoth Mystery A pair of mammoth skeletons is found locked together by their tusks. What happened? Read More »NOVA scienceNOW: Dispatch: Asking Big Questions In this excerpt from a 2002 commencement address at Oberlin College, the late cancer researcher Judah Folkman describes how he learned to think outside the box when he was in high school. Listen in. Read More »NOVA scienceNOW: Brain Trauma Even so-called "mild" head injuries turn out to be anything but. Read More »NOVA scienceNOW: Phoenix Mars Lander NASA's latest robot has already found frozen water and is looking for more signs that the Red Planet could support life. Read More »NOVA scienceNOW: Profile: Judah Folkman Once scorned for his ideas about how cancer grows, the late Judah Folkman is now hailed as a visionary. Read More »NOVA scienceNOW: Profile: Edith Widder Meet a marine biologist and explorer who has engineered new ways to spy on deep-sea creatures. Read More »NOVA scienceNOW: The Search for ET Astronomers have their radio telescopes tuned to receive signals from alien worlds. But is anybody out there? Read More »NOVA scienceNOW: Stem Cells Breakthrough Three separate teams overcome a biomedical hurdle -- creating stem cells without the use of human embryos. Read More »NOVA scienceNOW: Leeches A century after falling out of favor among doctors, medicinal leeches are back in hospitals, sucking away on patients' wounds. Read More »NOVA scienceNOW: Profile: Yoky Matsuoka A former tennis prodigy aims to create advanced prosthetic limbs controlled by human thought. Read More »NOVA scienceNOW: Space Storms Behind the dazzling display of the aurora borealis are space storms that could turn the lights off here on Earth. Read More »NOVA scienceNOW: Bird Brains Clues to the origins of human language are turning up in the brains of birds. Read More »NOVA scienceNOW: Dispatch: Bridge Doctors In this audio feature, engineer Michael Todd explains how new sensing technologies may help detect structural problems within bridges before they become dangerous. Read More »NOVA scienceNOW: Killer Microbe A relatively benign bug becomes a highly lethal pathogen, known to U.S. soldiers as Iraqibacter. Read More »NOVA scienceNOW: Saving Hubble Two teams of spacewalkers take on the risky mission of reviving the ailing Space Telescope. Read More »NOVA scienceNOW: Profile: Alfredo Quinones-Hinojosa He jumped the fence from Mexico to work as a farmhand and ended up a leading brain surgeon. Read More »NOVA scienceNOW: First Primates Our most distant primate ancestors, which took the stage shortly after the dinosaurs left it, were tree-dwellers the size of mice. Read More »NOVA scienceNOW: Dispatch: Personal Genome Project In this video dispatch, learn why George Church of Harvard Medical School hopes to recruit 100,000 people and sequence all of their DNA. Read More »NOVA scienceNOW: Dispatch: Falling Through the Earth Join host Neil deGrasse Tyson for a fantastic voyage through Earth's molten core -- without getting burned. Read More »NOVA scienceNOW: Art Authentication See how clever computer algorithms can distinguish a master fake from a masterpiece. Read More »NOVA scienceNOW: Personal DNA Testing Genetic testing to assess risk factors for a handful of serious illnesses is now commercially available. But is it a good idea? Read More »NOVA scienceNOW: Capturing Carbon An eighth-grader's science fair project prompts her scientist father to develop a new way to pull excess carbon dioxide out of the atmosphere. Read More »NOVA scienceNOW: Profile: Pardis Sabeti By night she's a rocker. By day, she's a Harvard geneticist tracking the evolution of the human genome. Read More »NOVA scienceNOW: Dispatch: Hands on Hubble John Grunsfeld, an astronomer and astronaut, says that fixing the Hubble Space Telescope will be a delicate operation. Here, he explains how astronauts will have to literally let their fingers do the walking when working on the satellite -- and why the gloves of their space suits will play a major role in the mission's success. Read More »NOVA scienceNOW: Profile: Hany Farid This self-proclaimed "accidental scientist" is a digital detective inventing new ways to tell if photos have been faked. Read More »NOVA scienceNOW: Dark Matter Turns out most of the universe is held together by a mysterious, invisible substance. Read More »NOVA scienceNOW: Of Mice and Memory Mice placed in enriched environments can recover lost memories, giving hope to those who study Alzheimer's. Read More »NOVA scienceNOW: Wisdom of the Crowds Ask enough people to estimate something, and their combined guesses will get you surprisingly close to the right answer. Read More »Lord of the Ants: Watch the Program This one-hour program is divided into five chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video. Read More »A Walk to Beautiful: Watch the Program This one-hour program is divided into six chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video. Read More »Lord of the Ants: Amazing Ants Game Match eight ants -- the trap jaw and honey pot among them -- to their unique behaviors. Read More »Lord of the Ants: A Conversation With E.O. Wilson Do humans have "biophilia," a built-in love for living things? Read More »Lord of the Ants: Man of Ideas Sample high points in Wilson's remarkable half-century career through an overview of 12 of his books. Read More »Lord of the Ants: The Boy Naturalist In this excerpt from his autobiography, 15-year-old Ed "Snake" Wilson meets his match in a swamp. Read More »NOVA scienceNOW: Dispatch: Finding Lost Memories In diseases like Alzheimer's, are forgotten memories gone for good? MIT's Eric Lander and Li-Huei Tsai discuss new experiments that are exploring whether these "lost" memories can be regained. Read More »Car of the Future: Watch the Program This one-hour program is divided into six chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video. Read More »Car of the Future: Open Content More than 200 clips of footage, including expert interviews and scenics, are available for you to make your own video. Read More »NOVA scienceNOW: Dispatch: Finding a Fake Van Gogh Can a computer tell the difference between an original van Gogh painting and a fake? NOVA scienceNOW producer Dean Irwin describes how 21st-century technology can help museum curators catch even the most skilled forgers. Read More »Cracking the Maya Code: Watch the Program This one-hour program is divided into five chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video. Read More »Car of the Future: Model of Efficiency In this audio slide show, Amory Lovins offers his vision of an ultra-efficient 'Hypercar.' Read More »Car of the Future: History's Innovative Autos For a glimpse of how future cars may be powered, start by looking at the past. Read More »Car of the Future: Beyond Technology Energy expert David Greene explains why we need smart government policies to spur change in our transportation system. Read More »Cracking the Maya Code: Decode Stela Three 'Read' Maya hieroglyphs carved on an eighth-century stone monument, and hear them spoken aloud. Read More »Cracking the Maya Code: A Masterpiece Revealed Explore a 2,000-year-old mural, one of the most exciting recent discoveries of early Maya art. Read More »Cracking the Maya Code: Map of the Maya World From Chichen Itza in the north to Copan in the south, the Maya empire was vast and varied. Read More »Cracking the Maya Code: Time Line of Decipherment Trace key discoveries in the effort to understand the Maya script. Read More »NOVA scienceNOW: Dispatch: Eavesdropping on E.T. Seth Shostak, senior astronomer at SETI, thinks it's just a matter of time before we find evidence of other intelligent life in the universe. Read More »A Walk to Beautiful: Anatomy of Childbirth Review the three stages of having a baby as well as some of the risks women face. Read More »A Walk to Beautiful: Second Chances Catherine Hamlin explains why she has dedicated her life to treating fistulas. Read More »A Walk to Beautiful: The Producer's Story Mary Olive Smith describes the mix of emotions she felt in making this film. Read More »A Walk to Beautiful: Two Worlds In this quiz, see how women in rich and poor countries face very different realities when it comes to childbearing and maternal health. Read More »The Four-Winged Dinosaur: Watch the Program This one-hour program is divided into six chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video. Read More »NOVA scienceNOW: Dispatch: Global Meltdown Glaciologist Lonnie Thompson says that glaciers around the world are disappearing -- fast. Read More »Ape Genius: Watch the Program This one-hour program is divided into six chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video. Read More »Astrospies: Watch the Program This one-hour program is divided into five chapters. Choose any chapter and select QuickTime or Windows Media Player to begin viewing the video. Read More »NOVA scienceNOW: Dispatch: Doctor Q Neurosurgeon Alfredo Quinones-Hinojosa's career didn't start in a hospital -- it began in a farm field. Listen in. And watch for Dr. Q's profile on NOVA scienceNOW this summer. Read More »The Four-Winged Dinosaur: The Producer's Story Mark Davis has been tracking the controversial case of the flying dinosaur for almost 20 years. Read More »The Four-Winged Dinosaur: Built to Fly Compare the anatomy of the oldest known bird and its dinosaur cousins. Read More » | ||||
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Friday, May 24, 2013
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