Servants of the Map: NOVA Episode List

12. 15 Feb 17 The Origami Revolution
~~13.~~ 22 Feb 17 Why Trains Crash
14. 19 Apr 17 Holocaust Escape Tunnel
~~15.~~ 26 Apr 17 Building Chernobyl's Tomb
16. 17 May 17 Chinese Chariot Revealed
17. 31 May 17 Poisoned Water

Season 45 : 2017-2018

1.    21 Aug 17 Eclipse Over America
2. 13 Sep 17 Death Dive to Saturn
3. 04 Oct 17 Secrets of the Shining Knight
4. 11 Oct 17 Ghosts of Stonehenge
5. 18 Oct 17 Secrets of the Forbidden City
6. 25 Oct 17    Killer Volcanoes
7.    01 Nov 17 Killer Hurricanes
8. 08 Nov 17 Killer Floods
9. 22 Nov 17   Extreme Animal Weapons
~~10.~~ 20 Dec 17   Bird Brain
11. 27 Dec 17 Day the Dinosaurs Died
~~12.~~ 10 Jan 18   Black Hole Apocalypse

~~13.~~ 31 Jan 18 The Impossible Flight
~~14.~~ 07 Feb 18   First Face of America
~~15.~~ 14 Feb 18   Great Escape at Dunkirk
~~16.~~   21 Feb 18 Prediction by the Numbers (my note: UGH!)
~~17.~~ 18 Apr 18 Decoding the Weather Machine
18. 25 Apr 18   NOVA Wonders (6 parts: What are Animals Saying? // What's Living in You? // Are We Alone? // Can We Build a Brain? // Can We Make Life? // What's the Universe Made of?)
19. 27 Jun 18 Rise of the Superstorms

Season 46 : 2018-2019

1.    26 Sep 18 Transplanting Hope
2. 03 Oct 18 Operation Bridge Rescue
3. 10 Oct 18 Volatile Earth: Volcano on Fire
4. 10 Oct 18 Volatile Earth: Volcano on the Brink
5. 17 Oct 18 Addiction
6. 24 Oct 18    Flying Supersonic
7.    07 Nov 18 Last B-24
8. 14 Nov 18 Thai Cave Rescue
9. 21 Nov 18   World's Fastest Animal (The Peregrine Falcon)
~~10.~~ 26 Dec 18   Apollo's Daring Mission
11. 27 Dec 18 Day the Dinosaurs Died
~~12.~~ 02 Jan 19   Pluto & Beyond

~~13.~~ 09 Jan 19 Einstein's Quantum Riddle
14. 23 Jan 19 Kilauea: Hawaii on Fire
15. 06 Feb 19 Decoding the Great Pyramid
~~16.~~ 13 Feb 19 Rise of the Rockets
17. 20 Feb 19 The Next Pompeii
~~18.~~ 24 Apr 19 Saving the Dead Sea
19. 08 May 19 Inside the Megafire
20. 15 May 19 First Horse Warriors
21. 22 May 19 Lost Viking Army

Season 47 :

1. "Polar Extremes" February 5, 2020

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 seemingly wrong places – beech trees in Antarctica, hippopotamic 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?

2. "Dog Tales"February 12, 2020

A look at dog domestication, how scientists test wolf intelligence and decode canine DNA, and what science says about a dog's love for humans.

3. "Cat Tales"February 19, 2020

The perplexing behaviours of cats have often raised the question of whether humans ever really domesticated felines.

4. "Mysteries of Sleep" February 26, 2020

Scientists study why animals and humans need to sleep, what happens to the brain during sleep, and the role sleep plays in memory, trauma, and emotion regulation."Cuba's Cancer Hope"April 1, 20204705(894)Cuban scientists develop their own biotech industry, including lung cancer vaccines that may give new hope to patients around the world.

5. "The Truth About Fat" April 8, 2020

the complex functions of fat and the role it plays in controlling hunger, hormones and reproduction.

6. "Decoding COVID-19"May 13, 2020

Scientists race to understand and defeat SARS-CoV-2. The first six months of the COVID-19 pandemic are detailed.

7. "Eagle Power"May 20, 2020

Up-close footage provides a look at the strength, eyesight and flying skills of an eagle, and reveals the danger and drama of chicks as they struggle to survive.

8. "Human Nature"September 9, 2020

Scientists study the implications of CRISPR, how it may change the human race's relationship with nature and what it means for human evolution.

9. "The Secret Mind of Slime"September 16, 2020

New research on extremely primitive life forms called slime moulds, which navigate through life without a brain, could reveal the fundamental rules underlying all decision making.

10. "A to Z: The First Alphabet"September 23, 2020

Researchers uncover the evolution of writing and the story of the alphabet, dating back to millennia-old carvings in an Egyptian turquoise mine.

11. "A to Z: How Writing Changed the World"September 30, 2020

How the development of writing played a vital role in shaping world history, from the invention of paper to the printed book.

12. "Nature's Fear Factor"October 14, 2020

Scientists reintroduce wild dogs to Mozambique's Gorongosa National Park to see if it helps restore balance to the entire ecosystem.

13. "Touching the Asteroid"October 21, 2020

Spacecraft OSIRIS-REx attempts to grab a piece of an asteroid to bring back to Earth so scientists can study it to learn about the planet's origins.

14. "Can We Cool the Planet?"October 28, 2020

As global temperatures rise, scientists look to geoengineering solutions, from planting trees to sucking carbon out of the air, as a means to cool the planet.

15. "Saving Notre Dame"November 25, 2020

Engineers race to rebuild the roof of the Notre Dame cathedral and secure the medieval structure within five years.

Season 48: 2020-21[edit]

Title Original air date Prod.
code^[4]
"Secrets in Our DNA" January 13, 2021 4801(906)
The value of DNA testing and the risks of entrusting this private data to commercial enterprises and online databases.
"Beyond the Elements: Reactions" February 3, 2021 4717(907)
Just about every solid, liquid, or gas in the world as we know it begins with reactions between individual atoms and molecules. Host David Pogue dives into the transformative world of chemical reactions, from the complex formula that produces cement to the single reaction that’s allowed farmers to feed a global population by the billions — a reaction that when reversed, unleashes the powerful chemistry of high explosives.
"Beyond the Elements: Indestructible" February 10, 2021 4718(908)
Glass so strong you can jump on it, a rubber-like coating tough enough to absorb a bomb blast, endless varieties of plastic. Scientists and engineers have created virtually indestructible versions of common materials by manipulating the chains of interlocking atoms that give them strength — but have they made them too tough? Host David Pogue explores the fantastic chemistry behind the everyday materials we depend on, and how the quest for durability can be balanced with products’ environmental impact.
"Beyond the Elements: Life" February 17, 2021 4719(909)
Without the chemistry of photosynthesis, ozone, and a molecule called Rubisco, none of us would be here. So how did we get so lucky? To find out, host David Pogue investigates the surprising molecules that allowed life on Earth to begin, and ultimately thrive. Along the way, he finds out what we’re all made of — literally.
"Looking for Life on Mars" February 24, 2021 4802(910)
NASA launches the Mars 2020 Mission to search for signs of life on Mars; the mission marks the first time a rover will land in Jezero Crater, an ancient river delta known to be one of the most dangerous areas for a spacecraft to land.
"Picture a Scientist" April 14, 2021 4803(911)
Women make up less than one-quarter of the number of people employed in STEM, and the number is even smaller for women of color.
"Reef Rescue" April 21, 2021 4804(912)
Marine biologists from the Bahamas to Christmas Island to Australia fight against the clock to save the coral reefs from extinction.
"Fighting for Fertility" May 12, 2021 4805(913)
Barriers to fertility, including social and biological, and the state of assisted reproductive technologies; couples navigating in vitro fertilization (IVF), mosaic embryos and other options for having a baby.
"Hindenburg: The New Evidence" May 19, 2021 4806(914)
A new investigation into the 1937 Hindenburg disaster includes a novel set of experiments that tests scenarios that may have led to the Hindenburg's ignition.
"Great Electric Airplane Race" May 26, 2021 4807(915)
Can new emission-free electric planes replace our polluting airliners and revolutionize personal transportation in our cities? NOVA takes you for a ride in some impressive prototypes that are already in the air, from speedy single-seat planes that can take off like a helicopter but are half as noisy to “self-flying” air taxis that are already taking passengers on test flights in Chinese cities. But if electric airplanes are ever to advance beyond small, short-haul craft, significant hurdles of battery weight, energy storage, and cooling remain to be overcome. How long will it be before the dream of super-quiet, super-efficient airliners becomes a reality?
"Ship That Changed the World" June 2, 2021 4809(916)
The discovery of a European ship dating back to the 15th century, Gribshunden, may provide physical evidence of engineering breakthroughs that helped create the modern world.
"Bat Superpowers" September 15, 2021 4810(917)
Bats have been implicated in deadly epidemics such as COVID-19 and Ebola, yet scientists are discovering evidence that they may hold a key to a longer and healthier life. From caves in Thailand and Texas to labs around the globe, NOVA meets the scientists who are decoding the superpowers of the bat.
"The Cannabis Question" September 29, 2021 4811(918)
As state-legalized cannabis spreads, NOVA explores its little-known risks and benefits.
"Particles Unknown" October 6, 2021 4812(919)
Join the hunt for the universe’s most common—yet most elusive and baffling—particle.
"Arctic Drift" October 13, 2021 4813(920)
Join scientists on a daring polar voyage to uncover the Arctic’s climate secrets.
"Edible Insects" October 20, 2021 4814(921)
NOVA takes a tasty look at insect foods that could benefit our health and our warming planet.
"Universe Revealed: Age of Stars" October 27, 2021 4815(922)
The sun is our life-giving source of light, heat, and energy, and new discoveries are unraveling its epic history. Join NOVA on a spectacular voyage to discover the sun’s place in a grand cycle of birth, death and renewal that makes this the age of stars. Witness how stars of every size and color came to populate our universe; how stars stage a dramatic exit when they explode as supernovae, which can outshine an entire galaxy; and how, billions of years in the future, the age of stars will lead ultimately to an age of darkness.
"Universe Revealed: Milky Way" November 3, 2021 4816(923)
Straddling the night sky, the Milky Way reminds us of our place in the galaxy we call home. But what shaped this giant spiral of stars and what will be its destiny? NOVA travels back in time to unlock the turbulent story of our cosmic neighborhood, from its birth in a whirling disk of clouds and dust to colossal collisions with other galaxies. Finally, peer into the future to watch the Milky Way’s ultimate fate as it collides with the Andromeda galaxy, over 4 billion years from now.
"Universe Revealed: Alien Worlds" November 10, 2021 4817(924)
It’s an age-old question: are we alone? Or do other lifeforms and intelligences thrive on worlds far beyond our own? Ultra-sensitive telescopes and dogged detective work are transforming alien planet-hunting from science fiction into hard fact. Join NOVA on a visit to exotic worlds orbiting distant suns, from puffy planets with the density of Styrofoam to thousand-degree, broiling gas giants. Most tantalizing of all are the Super-Earths in the “Goldilocks zone,” just the right distance from their sun to support life, and with one of them signaling life’s essential ingredient, water, in its atmosphere.
"Universe Revealed: Black Holes" November 17, 2021 4818(925)
Take a seat on the ultimate thrill ride to explore nature’s strangest and most powerful objects. Black holes can reshape entire galaxies, warp the fabric of space and time, and may even be the key to unlocking the ultimate nature of reality. A new generation of high-energy telescopes is bringing these invisible voids to light, showing that “supermassives” millions or billions of times larger than our sun lurk at the center of nearly every galaxy, including our own. But what happens if you stray too close to one? And what lies beyond the black hole’s abyss? If nothing can ever escape it, is that the end of the story? Or could they be a portal to another dimension — or another universe, full of black holes?
"Universe Revealed: Big Bang" November 24, 2021 4819(926)
The Big Bang is when many think the universe started and time itself began. But what clues can we discover about this ultimate genesis of everything? And can we ever know what existed before the Universe’s birthday? With stunning animation based on space telescope images, NOVA explores infant galaxies filled with violent blue stars that formed just a few hundred million years after the Big Bang. Before that — before the coming of visible light itself — stretch the “cosmic Dark Ages.” But scientists haven’t stopped there; instead, they’ve come up with an incredible theory for what happened billionths of a billionth of a second from the universe’s birth.

Title	Original air date	Prod. code^[4]
"Secrets in Our DNA"	January 13, 2021	4801(906)
The value of DNA testing and the risks of entrusting this private data to commercial enterprises and online databases.
"Beyond the Elements: Reactions"	February 3, 2021	4717(907)
Just about every solid, liquid, or gas in the world as we know it begins with reactions between individual atoms and molecules. Host David Pogue dives into the transformative world of chemical reactions, from the complex formula that produces cement to the single reaction that’s allowed farmers to feed a global population by the billions — a reaction that when reversed, unleashes the powerful chemistry of high explosives.
"Beyond the Elements: Indestructible"	February 10, 2021	4718(908)
Glass so strong you can jump on it, a rubber-like coating tough enough to absorb a bomb blast, endless varieties of plastic. Scientists and engineers have created virtually indestructible versions of common materials by manipulating the chains of interlocking atoms that give them strength — but have they made them too tough? Host David Pogue explores the fantastic chemistry behind the everyday materials we depend on, and how the quest for durability can be balanced with products’ environmental impact.
"Beyond the Elements: Life"	February 17, 2021	4719(909)
Without the chemistry of photosynthesis, ozone, and a molecule called Rubisco, none of us would be here. So how did we get so lucky? To find out, host David Pogue investigates the surprising molecules that allowed life on Earth to begin, and ultimately thrive. Along the way, he finds out what we’re all made of — literally.
"Looking for Life on Mars"	February 24, 2021	4802(910)
NASA launches the Mars 2020 Mission to search for signs of life on Mars; the mission marks the first time a rover will land in Jezero Crater, an ancient river delta known to be one of the most dangerous areas for a spacecraft to land.
"Picture a Scientist"	April 14, 2021	4803(911)
Women make up less than one-quarter of the number of people employed in STEM, and the number is even smaller for women of color.
"Reef Rescue"	April 21, 2021	4804(912)
Marine biologists from the Bahamas to Christmas Island to Australia fight against the clock to save the coral reefs from extinction.
"Fighting for Fertility"	May 12, 2021	4805(913)
Barriers to fertility, including social and biological, and the state of assisted reproductive technologies; couples navigating in vitro fertilization (IVF), mosaic embryos and other options for having a baby.
"Hindenburg: The New Evidence"	May 19, 2021	4806(914)
A new investigation into the 1937 Hindenburg disaster includes a novel set of experiments that tests scenarios that may have led to the Hindenburg's ignition.
"Great Electric Airplane Race"	May 26, 2021	4807(915)
Can new emission-free electric planes replace our polluting airliners and revolutionize personal transportation in our cities? NOVA takes you for a ride in some impressive prototypes that are already in the air, from speedy single-seat planes that can take off like a helicopter but are half as noisy to “self-flying” air taxis that are already taking passengers on test flights in Chinese cities. But if electric airplanes are ever to advance beyond small, short-haul craft, significant hurdles of battery weight, energy storage, and cooling remain to be overcome. How long will it be before the dream of super-quiet, super-efficient airliners becomes a reality?
"Ship That Changed the World"	June 2, 2021	4809(916)
The discovery of a European ship dating back to the 15th century, Gribshunden, may provide physical evidence of engineering breakthroughs that helped create the modern world.
"Bat Superpowers"	September 15, 2021	4810(917)
Bats have been implicated in deadly epidemics such as COVID-19 and Ebola, yet scientists are discovering evidence that they may hold a key to a longer and healthier life. From caves in Thailand and Texas to labs around the globe, NOVA meets the scientists who are decoding the superpowers of the bat.
"The Cannabis Question"	September 29, 2021	4811(918)
As state-legalized cannabis spreads, NOVA explores its little-known risks and benefits.
"Particles Unknown"	October 6, 2021	4812(919)
Join the hunt for the universe’s most common—yet most elusive and baffling—particle.
"Arctic Drift"	October 13, 2021	4813(920)
Join scientists on a daring polar voyage to uncover the Arctic’s climate secrets.
"Edible Insects"	October 20, 2021	4814(921)
NOVA takes a tasty look at insect foods that could benefit our health and our warming planet.
"Universe Revealed: Age of Stars"	October 27, 2021	4815(922)
The sun is our life-giving source of light, heat, and energy, and new discoveries are unraveling its epic history. Join NOVA on a spectacular voyage to discover the sun’s place in a grand cycle of birth, death and renewal that makes this the age of stars. Witness how stars of every size and color came to populate our universe; how stars stage a dramatic exit when they explode as supernovae, which can outshine an entire galaxy; and how, billions of years in the future, the age of stars will lead ultimately to an age of darkness.
"Universe Revealed: Milky Way"	November 3, 2021	4816(923)
Straddling the night sky, the Milky Way reminds us of our place in the galaxy we call home. But what shaped this giant spiral of stars and what will be its destiny? NOVA travels back in time to unlock the turbulent story of our cosmic neighborhood, from its birth in a whirling disk of clouds and dust to colossal collisions with other galaxies. Finally, peer into the future to watch the Milky Way’s ultimate fate as it collides with the Andromeda galaxy, over 4 billion years from now.
"Universe Revealed: Alien Worlds"	November 10, 2021	4817(924)
It’s an age-old question: are we alone? Or do other lifeforms and intelligences thrive on worlds far beyond our own? Ultra-sensitive telescopes and dogged detective work are transforming alien planet-hunting from science fiction into hard fact. Join NOVA on a visit to exotic worlds orbiting distant suns, from puffy planets with the density of Styrofoam to thousand-degree, broiling gas giants. Most tantalizing of all are the Super-Earths in the “Goldilocks zone,” just the right distance from their sun to support life, and with one of them signaling life’s essential ingredient, water, in its atmosphere.
"Universe Revealed: Black Holes"	November 17, 2021	4818(925)
Take a seat on the ultimate thrill ride to explore nature’s strangest and most powerful objects. Black holes can reshape entire galaxies, warp the fabric of space and time, and may even be the key to unlocking the ultimate nature of reality. A new generation of high-energy telescopes is bringing these invisible voids to light, showing that “supermassives” millions or billions of times larger than our sun lurk at the center of nearly every galaxy, including our own. But what happens if you stray too close to one? And what lies beyond the black hole’s abyss? If nothing can ever escape it, is that the end of the story? Or could they be a portal to another dimension — or another universe, full of black holes?
"Universe Revealed: Big Bang"	November 24, 2021	4819(926)
The Big Bang is when many think the universe started and time itself began. But what clues can we discover about this ultimate genesis of everything? And can we ever know what existed before the Universe’s birthday? With stunning animation based on space telescope images, NOVA explores infant galaxies filled with violent blue stars that formed just a few hundred million years after the Big Bang. Before that — before the coming of visible light itself — stretch the “cosmic Dark Ages.” But scientists haven’t stopped there; instead, they’ve come up with an incredible theory for what happened billionths of a billionth of a second from the universe’s birth.

Season 49: 2021-22[edit]

Title Original air date Prod.
code^[4]
"High-Risk High-Rise" January 5, 2022 4808(927)
"Butterfly Blueprints" January 12, 2022 4820(928)
"Alaskan Dinosaurs" January 19, 2022 4821(929)
A team of intrepid paleontologists discovers dinosaurs that thrived in the unlikeliest of places — the cold and dark of winter in the Arctic Circle. How did they survive year-round and raise their young in frigid and dark winter conditions? A dinosaur expedition explores a remote, treacherous, and stormy terrain where the team knows that every bone they find there will likely be a first, adding up to a unique picture of a lost northern world.
"Ancient Maya Metropolis" January 26, 2022 4822(930)
The ancient ancestors of today’s Maya people thrived in large sophisticated cities across Central America for centuries. Why, around 750 CE, did they begin to abandon many of their major cities? Archaeologists investigate dramatic new evidence of the catastrophic droughts and instability that pushed cities beyond their limits. The evidence also testifies to the survival and resilience of the Maya people, whose traditions and creativity continue to enrich the world today.
"Arctic Sinkholes" February 2, 2022 4901(931)
Colossal explosions shake a remote corner of the Siberian tundra, leaving behind massive craters. In Alaska, a huge lake erupts with bubbles of inflammable gas. Scientists are discovering that these mystifying phenomena add up to a ticking time bomb, as long-frozen permafrost melts and releases vast amounts of methane, a potent greenhouse gas. What are the implications of these dramatic developments in the Arctic? Scientists and local communities alike are struggling to grasp the scale of the methane threat and what it means for our climate future.
"Secrets in the Scat" February 9, 2022 4902(932)
"Great Mammoth Mystery" February 16, 2022 4903(933)
"Augmented" February 23, 2022 4904(934)
"Determined: Fighting Alzheimer's" April 6, 2022 4905(935)
"Dinosaur Apocalypse: The New Evidence" May 11, 2022 4906(936)
"Dinosaur Apocalypse: The Last Day" May 11, 2022 4907(937)
"Why Ships Crash" May 18, 2022 4908(938)
"Ice Age Footprints" May 25, 2022 4909(939)
Thousands of ancient footprints stretch for miles across New Mexico’s White Sands National Park, capturing moments when Ice Age humans encountered now-extinct beasts, including mammoths and enormous ground sloths. These footprints tell an intimate story about what life was like during the Ice Age and reveal surprising new evidence about when humans arrived in North America.
"Ultimate Space Telescope" July 13, 2022 4910(940)
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. 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. 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.
"Saving Venice" September 28, 2022 4912(941)
Rising sea levels and sinking land threaten to destroy Venice. Leading scientists and engineers are racing against the clock and battling the forces of nature to try to save this historic city for future generations. Discover the innovative projects and feats of engineering currently underway, including a hi-tech flood barrier, eco-projects to conserve the lagoon, and new efforts to investigate erosion beneath the city. This is Venice as never seen before, at a critical moment in its rich history.
"Ending HIV in America" October 5, 2022 4911(942)
Almost 40 years after the discovery of HIV, could we be on the verge of ending the AIDS epidemic in America? As of 2019, in the U.S., there were only 34,000 new cases of the disease—a feat that once seemed near-impossible to achieve. How did scientists and the public health community tackle one of the most elusive deadly viruses to ever infect humans? Can innovative drugs bring new infections to zero? This is the story of an incredible scientific achievement and the public health work that still needs to be done to end HIV in America.
"Computers v. Crime" October 12, 2022 4914(943)
In police departments and courts across the country, artificial intelligence is being used to help decide who is policed, who gets bail, how offenders should be sentenced, and who gets parole. But is it actually making our law enforcement and court systems fairer and more just? This timely investigation digs into the hidden biases, privacy risks, and design flaws of this controversial technology.
"Can Psychedelics Cure?" October 19, 2022 4915(944)
Hallucinogenic drugs — popularly called psychedelics — have been used by human societies for thousands of years. Today, scientists are taking a second look at many of these mind-altering substances – both natural and synthetic – and discovering that they can have profoundly positive clinical impacts, helping patients struggling with a range of afflictions from addiction to depression and PTSD.
"Ocean Invaders" October 26, 2022 4916(945)
Lionfish – long prized in home aquariums – have invaded the Atlantic, and are now one of the ocean’s most successful invasive species, wreaking havoc in waters across the globe. Join ocean explorer Danni Washington on a journey to find out how they took over, why they’re doing so much damage, and what can be done about it. These fascinating creatures are a window into the impacts of invasive species in a globalized world where human activity is an increasingly powerful evolutionary force.
"Nazca Desert Mystery" November 2, 2022 4917(946)
One of the world’s greatest ancient enigmas, the Nazca lines are a dense network of criss-crossing lines, geometric shapes, and animal figures etched across 200 square miles of Peruvian desert. Who created them and why? Ever since they were rediscovered in the 1920s, scholars and enthusiasts have raised countless theories about their purpose. Now, archaeologists have discovered hundreds of long-hidden lines and figures as well as evidence of ancient rituals, offering new clues to the origins and motivations behind the giant desert symbols.
"Crypto Decoded" November 9, 2022 4918(947)
From Bitcoin to NFTs, crypto is making headlines. But what exactly is it, and how does it work? Experts go beyond the hype and skepticism to unravel the social and technological underpinnings of crypto – exploring how it came to be and why this new technology may change more than just money.
"Zero to Infinity" November 16, 2022 4919(948)
Zero and infinity. These seemingly opposite, obvious, and indispensable concepts are relatively recent human inventions. Discover the surprising story of how these key concepts that revolutionized mathematics came to be – not just once, but over and over again as different cultures invented and re-invented them across thousands of years.
"Rebuilding Notre Dame" December 14, 2022
Following the April, 2019 fire that almost destroyed Paris’s iconic Notre Dame Cathedral, a team of engineers, masons, and timber workers set out on the daunting challenge of restoring France’s historic landmark. A symbol of the nation’s identity and resilience, Notre Dame gradually rises from the ashes, thanks to a restoration project like no other.

Title	Original air date	Prod. code^[4]
"High-Risk High-Rise"	January 5, 2022	4808(927)
"Butterfly Blueprints"	January 12, 2022	4820(928)
"Alaskan Dinosaurs"	January 19, 2022	4821(929)
A team of intrepid paleontologists discovers dinosaurs that thrived in the unlikeliest of places — the cold and dark of winter in the Arctic Circle. How did they survive year-round and raise their young in frigid and dark winter conditions? A dinosaur expedition explores a remote, treacherous, and stormy terrain where the team knows that every bone they find there will likely be a first, adding up to a unique picture of a lost northern world.
"Ancient Maya Metropolis"	January 26, 2022	4822(930)
The ancient ancestors of today’s Maya people thrived in large sophisticated cities across Central America for centuries. Why, around 750 CE, did they begin to abandon many of their major cities? Archaeologists investigate dramatic new evidence of the catastrophic droughts and instability that pushed cities beyond their limits. The evidence also testifies to the survival and resilience of the Maya people, whose traditions and creativity continue to enrich the world today.
"Arctic Sinkholes"	February 2, 2022	4901(931)
Colossal explosions shake a remote corner of the Siberian tundra, leaving behind massive craters. In Alaska, a huge lake erupts with bubbles of inflammable gas. Scientists are discovering that these mystifying phenomena add up to a ticking time bomb, as long-frozen permafrost melts and releases vast amounts of methane, a potent greenhouse gas. What are the implications of these dramatic developments in the Arctic? Scientists and local communities alike are struggling to grasp the scale of the methane threat and what it means for our climate future.
"Secrets in the Scat"	February 9, 2022	4902(932)
"Great Mammoth Mystery"	February 16, 2022	4903(933)
"Augmented"	February 23, 2022	4904(934)
"Determined: Fighting Alzheimer's"	April 6, 2022	4905(935)
"Dinosaur Apocalypse: The New Evidence"	May 11, 2022	4906(936)
"Dinosaur Apocalypse: The Last Day"	May 11, 2022	4907(937)
"Why Ships Crash"	May 18, 2022	4908(938)
"Ice Age Footprints"	May 25, 2022	4909(939)
Thousands of ancient footprints stretch for miles across New Mexico’s White Sands National Park, capturing moments when Ice Age humans encountered now-extinct beasts, including mammoths and enormous ground sloths. These footprints tell an intimate story about what life was like during the Ice Age and reveal surprising new evidence about when humans arrived in North America.
"Ultimate Space Telescope"	July 13, 2022	4910(940)
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. 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. 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.
"Saving Venice"	September 28, 2022	4912(941)
Rising sea levels and sinking land threaten to destroy Venice. Leading scientists and engineers are racing against the clock and battling the forces of nature to try to save this historic city for future generations. Discover the innovative projects and feats of engineering currently underway, including a hi-tech flood barrier, eco-projects to conserve the lagoon, and new efforts to investigate erosion beneath the city. This is Venice as never seen before, at a critical moment in its rich history.
"Ending HIV in America"	October 5, 2022	4911(942)
Almost 40 years after the discovery of HIV, could we be on the verge of ending the AIDS epidemic in America? As of 2019, in the U.S., there were only 34,000 new cases of the disease—a feat that once seemed near-impossible to achieve. How did scientists and the public health community tackle one of the most elusive deadly viruses to ever infect humans? Can innovative drugs bring new infections to zero? This is the story of an incredible scientific achievement and the public health work that still needs to be done to end HIV in America.
"Computers v. Crime"	October 12, 2022	4914(943)
In police departments and courts across the country, artificial intelligence is being used to help decide who is policed, who gets bail, how offenders should be sentenced, and who gets parole. But is it actually making our law enforcement and court systems fairer and more just? This timely investigation digs into the hidden biases, privacy risks, and design flaws of this controversial technology.
"Can Psychedelics Cure?"	October 19, 2022	4915(944)
Hallucinogenic drugs — popularly called psychedelics — have been used by human societies for thousands of years. Today, scientists are taking a second look at many of these mind-altering substances – both natural and synthetic – and discovering that they can have profoundly positive clinical impacts, helping patients struggling with a range of afflictions from addiction to depression and PTSD.
"Ocean Invaders"	October 26, 2022	4916(945)
Lionfish – long prized in home aquariums – have invaded the Atlantic, and are now one of the ocean’s most successful invasive species, wreaking havoc in waters across the globe. Join ocean explorer Danni Washington on a journey to find out how they took over, why they’re doing so much damage, and what can be done about it. These fascinating creatures are a window into the impacts of invasive species in a globalized world where human activity is an increasingly powerful evolutionary force.
"Nazca Desert Mystery"	November 2, 2022	4917(946)
One of the world’s greatest ancient enigmas, the Nazca lines are a dense network of criss-crossing lines, geometric shapes, and animal figures etched across 200 square miles of Peruvian desert. Who created them and why? Ever since they were rediscovered in the 1920s, scholars and enthusiasts have raised countless theories about their purpose. Now, archaeologists have discovered hundreds of long-hidden lines and figures as well as evidence of ancient rituals, offering new clues to the origins and motivations behind the giant desert symbols.
"Crypto Decoded"	November 9, 2022	4918(947)
From Bitcoin to NFTs, crypto is making headlines. But what exactly is it, and how does it work? Experts go beyond the hype and skepticism to unravel the social and technological underpinnings of crypto – exploring how it came to be and why this new technology may change more than just money.
"Zero to Infinity"	November 16, 2022	4919(948)
Zero and infinity. These seemingly opposite, obvious, and indispensable concepts are relatively recent human inventions. Discover the surprising story of how these key concepts that revolutionized mathematics came to be – not just once, but over and over again as different cultures invented and re-invented them across thousands of years.
"Rebuilding Notre Dame"	December 14, 2022
Following the April, 2019 fire that almost destroyed Paris’s iconic Notre Dame Cathedral, a team of engineers, masons, and timber workers set out on the daunting challenge of restoring France’s historic landmark. A symbol of the nation’s identity and resilience, Notre Dame gradually rises from the ashes, thanks to a restoration project like no other.

Season 50: 2022-23[edit]

Title Original air date Prod.
code^[4]
"London Super Tunnel" February 1, 2023 5001(950)
For over a decade, more than 10,000 engineers and construction workers race to build a brand-new subterranean railroad under London— the Elizabeth Line—London’s new Underground. One of Europe’s biggest engineering projects, the construction teams confront immense challenges, from building platforms and concourses the size of aircraft carriers hidden under London’s busiest shopping venue, Oxford Street, to designing, outfitting, and testing a fleet of 70 new high-speed trains from scratch in just two years. Facing delays and cost overruns worsened by the pandemic, the engineers and technicians race to create 10 new stations, learn to operate the new trains, and test out new 13-mile twin tunnels under London. Drawing on more than 1,500 hours of footage, NOVA provides intimate glimpses of the challenges, setbacks, and ingenious solutions that lead to ultimate success, as the Queen finally opens the Elizabeth Line on May 24, 2022.
"Star Chasers of Senegal" February 8, 2023 5002(951)
A NASA spacecraft named Lucy blasts off from Cape Canaveral on a mission to the Trojans, a group of asteroids over 400 million miles from Earth thought to hold important clues about the origins of our solar system. Just hours before, in Senegal, West Africa, a team of scientists sets out to capture extraordinarily precise observations vital to the success of the Lucy mission – crucial data needed to help NASA navigate Lucy to its asteroid targets across millions of miles of space. The team’s leader, Senegalese astronomer Maram Kaire, takes viewers on a journey to investigate his nation’s rich and deep history of astronomy, reaching back thousands of years – and the promising future ahead.
"Ancient Builders of the Amazon" February 15, 2023 5003(952)
Recent stunning discoveries are exploding the myth of the Amazon as a primeval wilderness, revealing traces of ancient civilizations that flourished there for centuries. Dense settlements indicate populations in the millions, supported by sophisticated agricultural systems, while huge geometric earthworks and roadways bear witness to complex religious ideas and social networks. The evidence is now clear that, far from being an untouched wilderness, the Amazon has been shaped by human hands for millennia.
"New Eye on the Universe" February 22, 2023 5004(953)
In July 2022, NASA’s James Webb Space Telescope released its first images, looking further back in time than ever before to show our universe in stunningly beautiful detail. But that was just the beginning: With tons of new data and spectacular images flooding in, Webb is allowing scientists to peer deep in time to try to answer some of astronomy’s biggest questions. When – and how – did the first stars and galaxies form? And can we see the fingerprints of life in the atmospheres of distant worlds – or even within our own solar system?
"Weathering the Future" April 12, 2023 5005(954)
It’s hard not to notice: our weather is changing. From longer, hotter heat waves, to more intense rainstorms, to megafires and multi-year droughts, the U.S. is experiencing the full range of impacts from a changing global climate. At the same time, many on the front lines are fighting back – innovating solutions, marshaling ancient wisdom, and developing visionary ideas. The lessons they're learning today can help all of us adapt in the years ahead, as the planet gets warmer and our weather gets more extreme.
"Chasing Carbon Zero" April 26, 2023 5006(955)
The U.S. recently set an ambitious climate change goal: zero carbon emissions by 2050. And to achieve that, slash emissions in half by 2030. Is it possible? And what kind of technology would it take? Meet scientists and engineers who are convinced we can achieve carbon zero in time to avoid the biggest impacts of climate change.
"Saving the Right Whale" May 3, 2023 5007(956)
North Atlantic right whales are among the planet’s most critically endangered large ocean mammals. With fewer than 350 remaining as of 2023, they could be extinct within 20 years. But teams of marine biologists and whale rescuers are determined to help save the species. Follow their efforts and get a glimpse into the lives of these giants of the sea and their prospects for survival.
"Hidden Volcano Abyss" May 10, 2023 5008(957)
In January 2022, one of the most powerful volcanic eruptions in recorded history rocked the Pacific islands of Tonga, sending shockwaves around the world. Through first-person accounts of the disaster and eyewitness footage, experience the terrifying power of the eruption and the devastating tsunami that struck the shores of Tonga. Why was this eruption so big, how did it cause the tsunami, and could another disaster loom?
"Your Brain: Perception Deception" May 17, 2023 5009(958)
Is what you see real? Join neuroscientist Heather Berlin on a quest to understand how your brain shapes your reality, and why you can’t always trust what you perceive. In the first hour of this two-part series, learn what the latest research shows about how your brain processes and shapes the world around you, and discover the surprising tricks and shortcuts your brain takes to help you survive.
"Your Brain: Who's in Control?" May 24, 2023 5010(959)
Are you in control, or is your brain controlling you? Dive into the latest research on the subconscious with neuroscientist Heather Berlin. Sleepwalking, anesthesia, game theory, and more reveal surprising insights in this eye-opening journey to discover what’s really driving the decisions you make.
"Birth of the Sky" October 4, 2023 5011(959)
See how Earth transformed from a barren hellscape to a planet capable of sustaining life.
"Frozen" October 11, 2023 (959)
How did life survive on a planet covered in ice from pole to pole?
"Life Rising" October 18, 2023 (959)
See how life made the leap to land, turning a barren landscape into a lush, green world.
"Inferno" October 25, 2023 (959)
How did life bounce back after a cataclysmic extinction wiped out some 90% of all species?
"Inside China's Tech Boom" November 8, 2023 (959)
The inside story of China’s meteoric rise to the forefront of global innovation.
"The Battle to Beat Malaria" November 15, 2023 (959)
Follow the quest to create a lifesaving malaria vaccine.

Servants of the Map

Tuesday, April 4, 2017

NOVA Episode List

Season 48: 2020-21[edit]

Season 49: 2021-22[edit]

Season 50: 2022-23[edit]

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