Science & Technology

Witness the adorable world of puppies and kittens with unprecedented footage and never-before-seen clips of the early lives of dogs and cats.

Join biologist and extreme angler Jeremy Wade, as he catches the extraordinary and supersized fish that lurk in our planet's rivers and lakes.

Treehouse Masters will have you climbing to a majestic world up in the treetops with visionary and tree whisperer Pete Nelson as he designs private escapes for those with a passion to reconnect with nature and awaken their inner child.

Tanked follows the largest aquarium manufacturing company in the US, run by Wayde King & Brett Raymer. Watch them create the most outrageous tanks for some of the most striking fish and clients.

With nearly 6,000 veterinary cases and well over 100 births each year, the team at the Columbus Zoo has no shortage of incredible drama.

NASA’S UNEXPLAINED FILES returns with more mysterious encounters, unusual discoveries and strange sightings, straight from NASA’s best and brightest. These are the true stories of unexplainable phenomena first observed by the most credible scientific organization in the world.

A group of the best survival experts in the world take on an un-survivable situation: 40 days. 40 nights. No food, water or clothes. To survive they’ll need to master the environment, pushing far beyond the breaking point. Will even one be able to finish?

Bear Grylls has served with the British Special forces, climbed Everest, and explored the Arctic. He shows viewers how to survive the toughest and most remote environments on the planet by putting himself in the position of a stranded tourist.

Award-winning pool designer Lucas Congdon and his Lucas Lagoons crew create breathtaking outdoor living spaces. They tackle crazy challenges in the quest to build natural wonders in everyday backyards.

Two survivalists – one a military-trained expert, the other a self-trained naturalist – take on some of the planet's most unforgiving terrain to demonstrate – in their own way – how the right skills and some creative thinking can keep you alive.

"Ancient Top 10" counts down the most fascinating aspects of the ancient world, from fearsome dictators and lethal weapons to impressive metropolises and lasting mysteries.

An eight-part original docuseries following some of the last Alaskans allowed to live within the 19 million acres of the Arctic National Wildlife Refuge - one of the most remote places in the country.

Shark Week exposes you to the incredible truths about sharks as perfect predatory machines. Understand more about the world's deadliest marine hunters and why they've survived for millions of years.

Host Howie Mandel presents the internet's funniest videos of animals doing amazing, adorable and hilarious things; animal experts join the fun to provide professional insights into the real behavior and science behind the animal antics.

Why were trunks belonging to genius inventor Nikola Tesla confiscated in 1943? Did they contain the plans for nearly free worldwide electricity, massive death rays & other inventions? A new investigation driven by declassified CIA documents suggests a secret history of bitter rivalries, government conspiracies, Cold War & WW2 spy craft.

From the beginning of time, Stars, Galaxies, Planets, Solar Systems, and more have been working individually and together to produce all that is and all that we see. Take a deeper look at how the cosmos is designed, built, and actually works on How The Universe Works.

No food, no water, no shelter. Survivorman Les Stroud must rely on his years of training, raw instincts and sheer will to survive alone for seven days in the world's harshest environments with little more than a multitool.

UFO CONSPIRACIES investigates the world's most intriguing and fascinating UFO sightings. It retells and reconstructs incidents from all over the world by seeking out first-hand eye-witnesses and listening to their accounts. With the help of a panel of aviation, military and scientific experts, all the evidence is thoroughly examined.

What would really happen if we got a message from space? How would we react? Scientists and sci-fi writers, with cooperation from SETI and Carl Sagan's son, Nick, unravel the impact of this hypothetical world-changing event. ALIEN ENCOUNTERS illustrates the story of a world in which humans and newly arrived aliens live side by side.

At the Emergency Veterinary Trauma Center in Toronto, one of the busiest animal care facilities in Canada, veterinary professionals work together tirelessly to save the lives of animals in need of urgent medical care.

An exploration of engineering marvels.

From high-speed attacks to pack hunts, sharks have evolved to hunt in extraordinary ways; scientists and film makers capture five of the world's great feeding events for sharks.

MYTHBUSTERS JR. gives America's best and brightest 8- to 14-year-olds a chance to show the whole nation what they know. Combined with the mythbusting DNA of the original series and adding elements of THE SEARCH, this is a format where kids show off their ingenuity and STEM superskills.

Dr. Craig O'Connell goes to the Bass Strait for sawsharks; Victoria Elena Vasquez and Dr. David Ebert go into deep water in Tokyo Bay to find the goblin shark; they also find ghost sharks, frilled sharks, and the amazing luminescent lantern shark.

Could geologic events in Hawaii wipe out LA? Could another volcanic eruption shut down our airways? Biologist Liz Bonin and Geologist Martin Pepper travel to tropical paradises, remote glaciers and super volcanoes to reveal evidence of past catastrophic events and investigate the dangers that lie just below the Earth's surface.

These are the clips that cause ear-to-ear smiles and laughter. The clips that make you say… awww! Count down the most adorable animal videos online and find out which dogs, cats and more will be crowned AMERICA'S CUTEST!

In 1997, tourists in San Francisco witness a killer whale attacking a great white shark, capturing the incident on tape; now, experts make new discoveries about the killer whale's taste for shark meat.

A new episode of this series will be available every Friday. Each episode will expire 35 days from its individual launch date. In his quest for world domination, Hitler demanded some of the biggest and deadliest pieces of military hardware in history. In this series, the shock and awe tactics of the Blitzkrieg, the unparalleled fortifications on The Channel Islands and the Fuhrer's Megasub - a silent killing machine that had the potential to win the war for the Nazis - are all explored.

Scientists Dr. Laurent Vigliola and Dr. Will Robbins catch, crane-lift, and relocate several bull sharks from Nouméa, New Caledonia, to a pristine coral reef in hopes they will adapt to a new home away from people and learn to feed in the wild.

an expert explains a high-level subject in five different layers of complexity—first to a child, then a teen, then an college student, a grad student and, finally, a colleague.

Documenting the antics of venomous snake handlers, Simon Keys and Siouxsie Gillett.

For a puppy, it’s a big, brand-new world out there, full of obstacles, setbacks and amazing new experiences. And every new challenge is an opportunity for an ahh-inspiring, uproarious misadventure. Using comical user-generated clips, professional footage and fascinating factoids about puppy development, this endearing, hilarious, and informative new show highlights puppies trying to do the simplest tasks – drink water, climb stairs, escape the clutches of a toddler – all with varying degrees of success. Because when you’re a puppy, it’s you vs. the world.

Marine biologist Craig O'Connell tries to find out how close sharks really are to New York now that seals are back in New York Harbor, and shows what a future with great whites in New York will look like.

NASA X is a new NASA television program that follows innovative new technologies and the NASA scientists, researchers and engineers who are putting them to work for us.

Discovery Channel's Shark Week exposes you to the incredible truths about sharks as perfect predatory machines. Understand more about the world's deadliest marine hunters and why they've survived for millions of years. Shark Week tells you everything you want to know about sharks and their world.

Earth views from the International Space Station

Jack ventures into the remote Northern Territory in Australia where he dives into crocodile-infested swamps, reaches into giant lizards' burrows and crawls through dark, cramped caves to find six dangerous pythons.

At night, mother nature reveals her sadistic side. As mysterious monsters come out to feed on the weak… anything can become prey. To survive you’ll have to be smart, fast and lucky or you might find yourself dead by dawn.

Whether it’s re-creating detailed movie sets or building meticulous models of planes out of cardboard, some people’s passions are more than just a hobby. "Obsessed" highlights what happens when people live out those passions to the fullest.

Every day there are new questions about technology, businesses, and medical advancements. No matter the question, Cheddar explains it all.

At various times of the year and in different locations around the world, sharks of many kinds gather, swarm, and spiral; Dr. Tristan Guttridge conducts a study to find out what brings them together and what's going on in these shark societies.

NASA 360 examines how technologies developed by and for NASA are used in everything from space exploration to everyday consumer products, NASA 360 showcases how NASA changes our lives in positive ways

NASA's Vision: To reach for new heights and reveal the unknown so that what we do and learn will benefit all humankind.

Join marine biologist Greg Skomal and meteorologist Joe Merchant as they test Joe’s theory of how shark attacks can be as predictable as the weather.

This documentary series on the environment features a collection of kids' songs, activism, and heartfelt tips for protecting the planet.