Arizona State University

University of Southern California

Fermilab

Space Telescope Science Institute

Author, Is God a Mathematician?

MIT Department of Mechanical Engineering

Science Writer

Tufts University

Princeton University

Massachusetts Institute of Technology

Author, Our Mathematical Universe

Have you ever felt drawn toward choices without knowing why? Or, as seen in the movie “Inception,” have you ever felt like you’ve woken up with a decision that’s already been made for you?Neuroscience is beginning to demystify such feelings. Our agency and decisions, it turns out, can be measurably influenced by events that evade the conscious part of our brains. We’ll see three groundbreaking experiments that illustrate that influences we are unaware of in our waking life, during dreamless sleep, or even in our dreams can impact our memory and behavior.Published on February 18, 2021, in the journal Current Biology, an international team of scientists have found a bridge to the dream world by showing that it’s possible to have a direct dialogue with someone in their dream—and NOVA’s Greg Kestin (host of “What the Physics?!”) was given exclusive access.The scientific context and potential effect of this team’s work are built up in the film through two related groundbreaking experiments. These experiments also show how scientists can influence your decisions, desires, and habits without you being aware.

Watch the first-ever video documenting this live two-way dream communication.

Dream Hacking: Decisions, Addictions, and Sleep

Time Dilation and Intergalactic Travel

Could You Upload Your Brain?

FQXI

Fetzer Franklin Fund

What is The Nature of Reality? It’s a blog, and it’s pretty much the biggest question we could think of. We can’t promise that we’ll answer the question once and for all – in fact, we can pretty much guarantee that we won’t – but we promise a space that welcomes big ideas about space, time, and the universe; where we take questions as seriously as we take answers; where physics is about way more than inclined planes and levers and pulleys. Stick around; we just might expand your cosmic horizons.

What is The Nature of Reality? It’s a blog, and it’s pretty much the biggest question we could think of.

The Nature of Reality

What is The Nature of Reality? It’s a blog, and it’s pretty much the biggest question we could think of.

Alex Clark is the Digital Video Producer for the NOVA Science Studio. He produces original videos for the program and leads video production training for site coordinators and students. Alex is a video journalist, cinematographer, and instructor of documentary filmmaking and he holds a degree in journalism from Columbia University. He has created TV and digital content for PBS, NBC, and NowThis. A lover of all things science, he produced and co-hosted Vox’s Emmy-nominated YouTube series, Glad You Asked.

Kara is a digital editor covering the nexus of science, social justice, and the natural world.

Learn the science behind misinformation–how it’s shared, why it's believed, and what we can do to address it.

The spread of misinformation is influencing human behavior.

Why Misinformation Matters

The new national program will be led by five site coordinators and include 30 middle and high-school students grouped into regional cohorts from the Northeast, Southeast, Midwest, Southwest, and West Coast.

Meet the Site Coordinators of NOVA Science Studio

Watch as a piece of false information about llamas spreads across social media and gets disproved, only to have the story continue to circulate.

We're vulnerable to sharing misinformation because of the way that we communicate.

Origins of Misinformation and How it Spreads

NOVA Producer Alex Clark traces misinformation on mask-wearing from internet circles, to social media influencers, and back to the CDC in the NOVA Education video series.

There are various reasons why people believe in misinformation.

How Mask-Wearing Misinformation Became a Reality

Biomedical engineer, Khari Johnson, explains how underrepresentation in STEM fields is not due to lack of interest, aptitude or talent, but instead due to a number of systemic barriers.

Finding My Voice

Meet the NOVA Science Studio Team

The NOVA Science Studio is a program that aims to empower youth — especially those that are underrepresented in STEM — to tell engaging science communication stories about the issues that matter to them.

The NOVA Science Studio is a program that aims to empower youth — especially those that are underrepresented in STEM — to tell engaging science communication stories about the issues that matter to them.

NOVA Science Studio

<div class="rich-text">
	The slime mold Physarum polycephalum is a single cell without a brain, yet it can make surprisingly complicated decisions. In this animated video short, watch as a slime mold navigates through a maze and solves a civil engineering problem.

	Learn more about slime molds at <a href="http://www.scientificamerican.com/article.cfm?id=brainless-slime-molds">Scientific American</a>.
</div>

<div class="rich-text">Slime molds may be brainless, but they aren't stupid.</div>

Slime Mold Smarts

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	Cosmic rays are inescapable in space. They can rip right through an astronaut, damaging DNA and possibly causing cancer and memory loss over the long-term. But recent research shows that antioxidants, found in certain berries and fruit, may decrease the effects of this type of radiation.
</div>

<div class="rich-text">Berries and other foods containing antioxidants may alleviate cellular damage caused by cosmic radiation.</div>

Cosmic Ray Danger

Unravelling Bolero

The National Science Foundation

Koch Foundation

NOVA Science Trust Logo

the Alfred P. Sloan Foundation

NOVA ScienceNOW

Being with Jane Goodall

Barrington Irving: 30S on Flying Around the World Solo

Rudy Tanzi: A Scientist Gets Transcendent

The Secret Life of Scientists and Engineers

Animal and human forms of communication may be much closer than we previously thought.

The Law all Languages Obey

US & Territories

The search for extraterrestrial life is an age-old quest. But recent breakthroughs make today an era like no other in the history of astronomy. From the exhilarating probing of our own solar system and the Kepler mission’s astounding discovery of thousands of extrasolar planets, to the next-generation telescopes under development, the prospects for finding life beyond Earth have never been stronger. Still, daunting hurdles remain. How can we study anything light years away, let alone a little planet? In the vast universe, where should we even start to look? Is our failure to hear any other voices in the galaxy a sign that we are special? NOVA Wonders joins leading explorers now searching the galaxy for life and intelligence on other planets—and asks, if we do find other life in the universe…what would that mean?

Hunt for clues in the universe to answer one of humanity's biggest questions: Are we alone?

Are We Alone?

<div class="rich-text">Toxoplasma gondii is a parasite that invades the brains of mice and organs of cats, resulting in a disease called toxoplasmosis. This parasite can also infect humans by way of cat feces. Although Toxoplasma research is still in its early stages, scientists estimate that one-third of the human population has been infected.
</div>

<div class="rich-text">Toxoplasma gondii is a parasite that invades the brains of mice and organs of cats.</div>

Can Cat Poop Make You Crazy?

The Gordon and Betty Moore Foundation

The John Templeton Foundation

NOVA Wonders takes viewers on a journey to the frontiers of science, where researchers are tackling some of the biggest questions about life and the cosmos. From the mysteries of astrophysics to the secrets of the body to the challenges of inventing technologies that could rival—and even surpass—the abilities of the human mind, these six hours reveal how far we’ve come in our search for answers, how we managed to get here, and how scientists hope to push our understanding of the universe even further. Along the way, we meet the remarkable people who are transforming our world and our future.

A 6-part series exploring the biggest questions on the frontiers of science.

NOVA Wonders

A 6-part series exploring the biggest questions on the frontiers of science.

What is "What The Physics?!"Each episode explores something surprising or really interesting related to physics. Like the science behind the movie “Interstellar”… Or exploring what real parallel universes might be like… basically, things that make you go, “What The Physics?!” Visit our <a href="https://www.youtube.com/channel/UCj1gfrsi8H8zTrmR0ft1Kjw/featured">YouTube channel</a> for more.

What the Physics?!

The World's Most Expensive Fungus

4 Deadly Carnivorous Plants

Three Facts About Periods

Bizarre stories from the slimy, smelly, creepy world of science. GROSS SCIENCE from NOVA is produced by WGBH for PBS Digital Studios. See more on <a href="https://www.youtube.com/channel/UCHiZFOa_ZrLwYmxbTaUaKEA">Youtube</a>.

Bizarre stories from the slimy, smelly, creepy world of science.

Gross Science

Bizarre stories from the slimy, smelly, creepy world of science.

For something we use every day, energy is a pretty mysterious concept. This Lab investigates what energy is, how it can be converted into useful forms, and why some sources are running low.

Energy Lab

Fossils: Rocking the Earth

Take cybersecurity into your own hands. In this Lab, you’ll defend a company that is the target of increasingly sophisticated cyber attacks.

Cybersecurity Lab

NOVA Labs

A composite image of M51 with X-rays from Chandra and optical light from NASA's Hubble Space Telescope contains a box that marks the location of the possible planet candidate. Image Credit: X-ray: NASA/CXC/SAO/R. DiStefano, et al.; Optical: NASA/ESA/STScI/Grendler

The exoplanet candidate is about the size of Saturn and located in a Whirlpool galaxy system 28 million light-years from Earth.

In a first, astronomers find a potential planet outside the Milky Way

Echo, a scent detection dog, alerts to a locus of human cremains scent in the former home of Marc Pandone. Image Credit: Lynne Engelbert

With cremation on the rise, more Americans are keeping cremains of loved ones in their homes. As larger and fiercer wildfires destroy communities in the West, archaeologists are teaming up with scent detection dogs to find ashes among the ashes.

Dogs sniff out cremation ashes amid wildfire destruction

Stanley Andrisse holds an MBA and Ph.D. His nonprofit organization From Prison Cells to PhD offers education counseling, mentoring, and support to 100+ currently and formerly incarcerated people annually. Image Credit: Tchad at Free Star Media

New programs aim to help formerly incarcerated people enter careers in science, technology, engineering, and mathematics.

Meet the scientists building a prison-to-STEM pipeline

NOVA Next is NOVA’s award-winning digital publication that provides answers from the cutting edge of science and technology. Launched in 2012, we feature in-depth articles and commentaries from some of the most respected journalists, scientists, and engineers. NOVA Next explores the ideas that are changing the future, from the frontiers of synthetic biology to the politics of personalized medicine.Let us know what you think. We’re listening on <a href="http://www.facebook.com/NOVAonline">Facebook</a>, <a href="http://twitter.com/novapbs">Twitter</a>, and email.If you’re a journalist and have an idea for a story, send it our way.

NOVA Next is NOVA’s award-winning digital publication that provides answers from the cutting edge of science and technology.

NOVA Next

NOVA Next is NOVA’s award-winning digital publication that provides answers from the cutting edge of science and technology.

This collection features resources from Polar Extremes, Antarctic Extremes, and the Polar Lab to help students learn how Earth’s climate has changed over deep time and recent history and how studying our past can help predict our climate’s future.

Polar Extremes Collection

NOVA digital editor, Kara Norton, observing a great hammerhead shark in Bimini, The Bahamas. Image Credit: Michael Ryan Clark

Moving beyond Shark Week, these women-led groups teach thousands of students about the critical role sharks play in the marine ecosystem.

Meet the women diversifying shark science

No images or monuments of Onesimus exist in the public record, yet his contributions, and those of Africans across the diaspora expanded medical knowledge. Image Credit: Jean Baptiste Debret/slaveryimages.org/CC BY-NC 4.0

In the 1700s, an enslaved man named Onesimus shared a novel way to stave off smallpox during the Boston epidemic. Here’s his little-told story, and how the Atlantic slave trade and Indigenous medicine influenced early modern science.

How African Indigenous knowledge helped shape modern medicine

Learn how rising water temperatures affect corals and their symbiotic algae in these videos adapted from NOVA: Reef Rescue.

The Symbiotic Relationship Between Coral and Algae I Reef Rescue

A sculpture of James Marion Sims. Often “portrayed as a champion of women’s health,” this 19th-century “father of modern gynecology” developed many of his techniques by conducting unethical research and experiments on enslaved Black women. Image Credit: Matt Green/Flickr/CC BY-NC-SA 2.0

Join NOVA Education for three virtual events dedicated to the intersection of STEM education and social justice.

Where Science and Social Justice Meet

Scientists at Cornell University’s Civic Ecology Lab are offering a counter perspective to viewing humans solely as destroyers of the environment.

Civic Ecology: Integrating Social and Environmental Sciences

NOVA Education tailors NOVA's digital resources for educators in science, technology, engineering, and mathematics. Our free educator library is produced according to teaching standards and includes videos, audio segments, lesson plans, and interactives designed to facilitate effective classroom integration. Please let us know how we're doing and what you might like to see. NOVA Education is committed to creating digital learning resources that work for you.

NOVA Education supports STEM education and engagement nationwide through the creation of resources from NOVA's broadcast and digital productions.

NOVA Education

NOVA Education supports STEM education and engagement nationwide through the creation of resources from NOVA's broadcast and digital productions.

Test New Brand

Mammals with pouches, like this red kangaroo, didn't originate in Australia, but they have prospered there like nowhere else on the planet. Why?

Photo credit: istockphoto.com/© Michelle Allen/WebStuff.biz Pty Ltd

How did Australia come to be marsupial heaven?

Evolution Down Under

Nova

Canada

United States

Northern Mariana Islands

Puerto Rico

American Samoa

Guam

U.S. Virgin Islands

U.S. Minor Outlying Islands

US, US Territories, Canada

Operation Lighthouse Rescue

Join engineers as they race to rescue a historic lighthouse from certain doom.

NOVA Universe Revealed: Big Bang

Venture back to the birth of space and time as NOVA probes the mystery of the Big Bang.

Ultimate Space Telescope

Discover how NASA engineers built and launched the most ambitious telescope of all time.
How did NASA engineers build and launch the most ambitious telescope of all time? Follow the dramatic story of the James Webb Space Telescope—the most complex machine ever launched into space. If it works, scientists believe that this new eye on the universe will peer deeper back in time and space than ever before to the birth of galaxies, and may even be able to “sniff” the atmospheres of exoplanets as we search for signs of life beyond Earth. But getting it to work is no easy task. The telescope is far bigger than its predecessor, the famous Hubble Space Telescope, and it needs to make its observations a million miles away from Earth—so there will be no chance to go out and fix it. That means there’s no room for error; the most ambitious telescope ever built needs to work perfectly. Meet the engineers making it happen and join them on their high stakes journey to uncover new secrets of the universe. (Premiering July 13 at 9 pm on PBS)

Discover how NASA engineers built and launched the most ambitious telescope of all time.

Polar Extremes

Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.

How did NASA engineers build and launch the most ambitious telescope of all time? Follow the dramatic story of the James Webb Space Telescope—the most complex machine ever launched into space. If it works, scientists believe that this new eye on the universe will peer deeper back in time and space than ever before to the birth of galaxies, and may even be able to “sniff” the atmospheres of exoplanets as we search for signs of life beyond Earth. But getting it to work is no easy task. The telescope is far bigger than its predecessor, the famous Hubble Space Telescope, and it needs to make its observations a million miles away from Earth—so there will be no chance to go out and fix it. That means there’s no room for error; the most ambitious telescope ever built needs to work perfectly. Meet the engineers making it happen and join them on their high stakes journey to uncover new secrets of the universe. (Premiering July 13 at 9 pm on PBS)

Discover how NASA engineers built and launched the most ambitious telescope of all time.

Discover how NASA engineers built and launched the most ambitious telescope of all time. Premiering July 13 at 9 pm on PBS

After years of anticipation, autonomous vehicles are now being tested on public roads around the world. As ambitious innovators race to develop what they see as the next high-tech pot of gold, some experts warn there are still daunting challenges ahead, including how to train artificial intelligence to be better than humans at making life-and-death decisions. How do self-driving cars work? How close are we to large-scale deployment of them? And will we ever be able to trust AI with our lives? (Premiered October 23, 2019)

As self-driving cars take to the streets, investigate how they work, and if they are safe.

Look Who's Driving

NOVA revolves around a simple premise: the world of science is exciting! For NOVA viewers, science means adventure and exploration--because from ants to aliens, this weekly documentary series probes the far reaches of earth, sea and stars.  NOVA proves that science is neither secret lore nor sacred ritual but rather, at its heart, a lifelong journey of discovery.

Astrophysicists use radio telescopes, which pick up radio waves emitted by black holes and other objects in space that don’t give off optical light, to hunt for black holes, says Rutuparna Das, who conducts research for NASA’s Chandra X-ray Observatory. Telescopes like Chandra can be used to illuminate and observe material orbiting black holes, making a black hole’s spinning accretion disc appear to glow (as seen in this image of Pōwehi from 2019). Image Credit: Event Horizon Telescope collaboration

At long last, astronomers have captured the world’s first image of a black hole, some 55 million light-years away.

Feast Your Eyes on the First Image of a Black Hole

A pilot flying over Esieh Lake, located on the lands of the Indigenous Inupiat people, spotted something unusual on its surface.

Scientists look for the source of large bubbles in an Arctic lake.

What's Causing Water to Bubble in the Arctic?

Bears can hibernate for months on end without losing bone density.

By studying bears’ months-long lethargy, scientists may have stumbled on a way to prevent astronauts’ bone loss.

Secrets of Bear Hibernation Could Help Us Get to Mars

Depression, anxiety, and stress can have an effect on a person's memory that mirrors signs of Alzheimer's.

Exercise may help depression patients regain memory.

Depression Can Affect Memory—and Mirror Signs of Alzheimer's

Also known as "water bears" or "moss piglets," tardigrades are microscopic animals with extreme survival abilities. Image credit: iStock

Special proteins that help tardigrades survive extreme conditions might be the key to extending the shelf life of life-saving pharmaceuticals.

After Conquering Space, Water Bears Could Save the Global Vaccine and Blood Supply

Remains—particularly teeth—reveal that two species of mammoth once lived in what is now Southern England.

These bones could have belonged to some of the last surviving steppe mammoths in Britain.

The Mammoth Species You've Never Heard Of

Quinn Brett hikes with her Bomber off-road handcycle on Walter's Wiggles, a steep trail named for its many switchbacks, in Zion National Park. Image Courtesy of Quinn Brett

The trails through our public lands weren’t designed for wheelchairs, but new wheelchairs are designed for those trails. National Park Service accessibility specialist Quinn Brett wants parks to catch up with wheelchair technology, increasing access to American wilderness.

Adapting national parks for wheelchair hiking

Black holes are the most enigmatic and exotic objects in the universe. They’re also the most powerful, with gravity so strong it can trap light. And they’re destructive, swallowing entire planets, even giant stars. Anything that falls into them vanishes…gone forever. Now, astrophysicists are realizing that black holes may be essential to how our universe evolved—their influence possibly leading to life on Earth and, ultimately, us. In this two-hour special, astrophysicist and author Janna Levin takes viewers on a journey to the frontiers of black hole science. Along the way, we meet leading astronomers and physicists on the verge of finding new answers to provocative questions about these shadowy monsters: Where do they come from? What’s inside? What happens if you fall into one? And what can they tell us about the nature of space, time, and gravity? (Premiered January 10, 2018)

Take a mind-blowing voyage to the most powerful and mysterious objects in the universe.

Black Hole Apocalypse

An Australian magpie. Image Credit: NAPARAZZI, Flickr

During a recent study, a group of magpies removed their GPS trackers, astounding their observers. But were the birds actually trying to help each other?

How magpies outwitted researchers in Australia

General - US & Territories

In the Badlands of North Dakota, a team of scientists think they might have found the fossilized remains of animals killed on the day an asteroid struck Earth 66 million years ago. The evidence points to a catastrophic event, with a jumble of rare fossils, including a pterosaur embryo still in its shell and a well-preserved patch of triceratops skin, mixed in with tiny spheres of clay and glass that could be the fallout from the massive asteroid impact. Sir David Attenborough guides us on a search for clues that could give an unprecedented snapshot of what happened in the dinosaurs’ final moments on Earth. (A two-hour special premiering at 9 pm on May 11 on PBS)

Striking new fossils paint a picture of life right before the asteroid impact.

Dinosaur Apocalypse: The New Evidence

In this two-hour special, renowned paleontologist Kirk Johnson takes us on an epic adventure through time at the polar extremes of our planet. Following a trail of strange fossils found in all the wrong places—beech trees in Antarctica, hippo-like mammals in the Arctic—Johnson uncovers the bizarre history of the poles, from miles-high ice sheets to warm polar forests teeming with life. What caused such dramatic changes at the ends of the Earth? And what can the past reveal about our planet’s climate today—and in the future? (Premiered February 5, 2020)

Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.

Something big is happening to Earth’s climate, and the polar regions hold the key to understanding it. Join top scientists on the hunt for clues that tell a surprising story about our planet’s past...and preview where we might be headed.

The Polar Lab

Disastrous hurricanes. Widespread droughts and wildfires. Withering heat. Extreme rainfall. It is hard not to conclude that something’s up with the weather, and many scientists agree. It’s the result of the weather machine itself—our climate—changing, becoming hotter and more erratic. In this two-hour documentary, NOVA will cut through the confusion around climate change. Why do scientists overwhelmingly agree that our climate is changing, and that human activity is causing it? How and when will it affect us through the weather we experience? And what will it take to bend the trajectory of planetary warming toward more benign outcomes? Join scientists around the world on a quest to better understand the workings of the weather and climate machine we call Earth, and discover how we can be resilient—even thrive—in the face of enormous change.

Discover how Earth’s intricate climate system is changing.

Decoding the Weather Machine

Planet Earth

The 6 million-ton Great Pyramid of Giza is the last surviving wonder of the ancient world. How did the Egyptians engineer the mighty pharaoh Khufu’s tomb so precisely, with none of today’s surveying and power tools? And who were the thousands of laborers who raised the stones? Were they slaves or volunteers, and how were they housed, fed, and organized? "Decoding the Great Pyramid" presents the latest evidence from groundbreaking archaeological research that has transformed our understanding of the ancient world’s most ambitious engineering project, revealing a “lost city" and intimate details of the lives of the laborers and officials who toiled on the vast construction. Amazingly, French archaeologists recently found the logbook of a labor team that delivered limestone blocks to build the Great Pyramid, yielding crucial insights into the planning and logistics behind the operation. Beyond these construction secrets, "Decoding the Great Pyramid" traces how mobilizing the colossal labor and resources invested in the monument transformed ancient Egypt, uniting a nation behind the common goal of ensuring eternity for the pharaoh and continuing prosperity for everyone in this life and the next. (Premiered February 6, 2019)

New archeological evidence sheds light on the stunning engineering of the Great Pyramid of Giza.

Decoding the Great Pyramid

Explore the intimate connections between the landscape, the colonizing of the continent, and the emergence of our industrial world. Beginning with Native American ancestors who crafted hunting weapons from stone traded across hundreds of miles, the program shows how pre-Columbian civilizations developed an expert knowledge of the landscape and its resources. With the arrival of Europeans, North America’s hidden riches became to key to prosperity, from the gold rush to today’s oil and gas boom. As a result, human activity has transformed the continent on a scale that rivals the geological forces that gave birth to it billions of years before. Yet, scientists warn of sleeping giants like the Cascadia fault, and the earthquake/tsunami one-two punch it could unleash on the Pacific Northwest. Even as we re-mold the continent to suit our needs, geologic processes inexorably continue, and they raise potential risks of catastrophe to our human civilization.

How has the land shaped our lives, from the arrival of the first Americans to today?

Making North America: Human

(This program is no longer available for online streaming.) Our ancient human ancestors once lived only in Africa, in tiny bands of a few thousand hunter-gatherers. Then we moved out of our African cradle, spreading rapidly to every corner of the planet. How did we acquire the skills, technology and talent to thrive in every environment on earth? How did our prehistoric forebears cross the Sahara on foot, survive frigid ice ages, and sail to remote Pacific islands? “Great Human Odyssey” is a spectacular global journey following their footsteps out of Africa along a trail of fresh scientific clues. With unique glimpses of today’s Kalahari hunters, Siberian reindeer herders, and Polynesian navigators, we discover amazing skills that hint at how our ancestors survived and prospered long ago. (Premiered October 5, 2016)

Follow our ancient ancestors’ footsteps out of Africa and into every corner of our planet.

Great Human Odyssey

Ancient Worlds

Jupiter is not just the oldest planet orbiting the sun—it’s also the largest. So when the young gas giant went on a rampage through the inner solar system, it shaped the fate of everything in its path. Speeding towards the Sun, Jupiter’s massive gravitational force hurled debris into interstellar space, stunting the growth of would-be planets. Earth might have been doomed had Saturn not pulled Jupiter back. Today, Jupiter resides in the outer solar system, where its gravity bends the paths of asteroids and stokes volcanic activity on its moon Io. But it could one day wreak havoc again. (Premiering July 31 at 9 pm on PBS)

Jupiter's massive gravitational force has made it both a wrecking ball and a protector of Earth.

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