00:30 Expedition Bigfoot 1/5s.
Human Bait. Mireya and Ronny return to where they heard whistles and saw glowing eyes. Meanwhile, Mireya agrees to be bait in order to lure out Bigfoot.
01:20 Expedition Bigfoot 1/6s.
Bigfoot Moon Rising. After Russell records thermal imagery that believes is Bigfoot. Mireya and Ronny have a terrifying experience when they realise they're not alone in the forest.
02:10 Blowing Up History 4/12s.
Rome's Great Wall. The Roman Empire built Hadrian's Wall to guard its frontiers; new discoveries reveal who the Romans were trying to keep out with this 72-mile-long megastructure.
03:00 How It's Made 21/9s.
Indy Car Seats, Paper Flowers, Stand-By Generators. More everyday items go under the microscope with a look at how indie car seats, paper flowers and stand-by generators are made.
03:24 How It's Made 21/10s.
Knee Replacements, Leaf Springs, Lavender Oil. More everyday items go under the microscope with a look at how objects including knee replacements are made.
03:48 How Do They Do It? 14/20s.
Episode 20. How do they fabricate fire gloves for emergency services personnel? Plus, how do they create the enamel that is used in bake-wear around the world?
04:12 How Do They Do It? 15/1s.
Episode 1. How do the islanders of the Outer Hebrides use pedal power to weave world-famous Harris tweed? And, in Iceland, how do they prepare fermented shark?
04:36 How Do They Do It? 15/2s.
Episode 2. How do they make the world's most expensive and luxurious beds? And, how do they deliver supplies and equipment to the International Space Station?
05:00 How Do They Do It? 15/3s.
Episode 3. How do they make the distinctive Borsalino hat worn by Indiana Jones? And, how do they make a bicycle which can fold up to a tenth the size of a regular bike?
05:24 How It's Made 26/26s.
Peaked Caps, Custom Water Heaters. More everyday items go under the microscope, revealing their production. How are objects such as electric boats and fencing foils made?
05:48 How It's Made 18/1s.
Patterned Glass Panels/Road Cases/Stop-Frame Animation. Discover how patterned glass panels and road cases are made. We also see how stop-frame animation is achieved.
06:12 How It's Made 18/2s.
Industrial Wire Ropes/Living Walls/Large Format Cameras. Everyday items go under the spotlight. How are industrial wire ropes, living walls and large format cameras made?
06:36 How It's Made 18/3s.
Chocolate Coins/Floor Heating System. Discover how chocolate coins, pedal cars and latex swords are made in the latest episode of this popular series.
07:00 How Do They Do It? 15/4s.
Episode 4. How do they make the world's most famous electric guitar, the Fender Stratocaster? And, how do they make Swedish fermented cod roe Kalles caviar?
07:24 Killers Of The Cosmos 1/3s.
Cosmic Scrap. More than 100 million pieces of small space debris are floating around the Earth. A big collision between two of these objects in low Earth orbit could be catastrophic.
08:12 Killers Of The Cosmos 1/4s.
Little Green Men. Aliens could be lethal killers who want to invade and plunder our world. A team of experts investigate extra-terrestrial beings and their threat to human life.
09:00 Dino Hunters 1/2s.
Million-Dollar Dino. Clayton continues his excavation of a rare, carnivorous dinosaur on his Montana ranch. In Wyoming, Mike and Jake prepare to sell their prized T-Rex fossil.
09:48 Dino Hunters 1/3s.
Curse Of The Carnivore. Clayton and his team prepare to flip a 20,000-lb carnivore fossil from the earth. Mike hunts for a duckbill skull and Jared uncovers an ancient reptile.
10:36 How It's Made 21/16s.
Indy Steering Wheels, Mixed Salad, Wind Turbines. More everyday items go under the microscope with a look at how detachable Indy-Car steering wheels and wind turbines are made.
11:00 How It's Made 21/17s.
Blast Doors, Lipstick, Artificial Palm Trees, Brass Plaques. More everyday items go under the microscope with a look at how blast doors, lipstick and artificial palm trees are made.
11:24 How It's Made 21/18s.
Carbon Fibre, Antique Frame Restoration, Railcar Movers. More everyday items go under the microscope with a look at how carbon fibre and railcar movers are made.
11:48 How It's Made 21/19s.
Sawhorses And Toolboxes, Sorbet Pops, School Buses. More everyday items go under the microscope with a look at how sawhorses and toolboxes, sorbet pops and school buses are made.
12:12 How It's Made 21/20s.
Sanders, Solid Terrain Models, Stucco. More everyday items go under the microscope with a look at how objects from sanders to solid terrain models are made.
12:36 How It's Made 21/21s.
Pressed Glass, Pickup Truck Caps, Alpaca Yarn. Learn how everyday items such as pressed glass, pickup truck cabs, alpaca yarn and utility knives are produced.
13:00 How Do They Do It? 15/6s.
Episode 6. How did the ancient Greeks invent parchment with techniques still used today? And how do they make shuttlecocks, the fasting moving object in sport?
13:24 How Do They Do It? 15/8s.
Episode 8. In Cremona, how do they make modern violins that sound as good as the legendary Stradivarius? And, how do they build houses with volcanic rock?
13:50 How Do They Do It? 15/9s.
Episode 9. How does a Dutch company make the world's fastest superyachts? And, how do they make a new space suit that weighs and costs the fifth of the previous design?
14:14 How Do They Do It? 15/11s.
Episode 11. How do planes take off and land on a beach at one of the world's oldest airports? And, how do they hand-make the national dress of Bavaria, lederhosen?
14:38 How Do They Do It? 15/12s.
Episode 12. How do they catch the world's largest lobsters? How do they build the iconic chesterfield sofa? And, how do they capture the world's sharpest TV pictures?
15:02 How Do They Do It? 15/13s.
Episode 13. How do they take a car from Siberia to the Sahara without leaving Germany? Plus, how do they hand craft a baseball glove that will last a lifetime?
15:26 You Have Been Warned 5/9s.
Bucket List. A look at the ultimate bucket list, demonstrating how to cook bread with a volcano, build underwater hotel rooms, and go eyeball-to-eyeball with Great Whites.
16:14 You Have Been Warned 6/5s.
Owned It. A countdown of the top 20 internet legends. From lighting matches with bullets to kayaking in the snow, this features only the smartest and bravest human-kind has to offer!
17:02 How the Universe Works 7/1s.
Nightmares Of Neutron Stars. Neutron stars are violent phenomena that defy the laws of physics. New discoveries reveal they have the power to destroy planets and even other stars.
17:50 How the Universe Works 7/2s.
When Supernovas Strike. Supernovas are the violent death of giant stars. New discoveries reveal how these events create the elements that are essential to all life in the universe.
18:40 How It's Made 21/3s.
Lace, Antique Frame Replicas, Orchids. More everyday items go under the microscope with a look at how objects such as lace and unicycle wheel hubs are made.
19:05 How It's Made 21/4s.
External Hard Drives, Frozen Shrimp, Thai Rice Boxes. More everyday items go the microscope. How are external hard drives, Thai rice boxes and paper towels made?
19:30 How It's Made 21/5s.
Tea, Roof Finials, Artificial Flowers, Alloy Wheels. More everyday items go under the microscope with a look at how objects such as tea, artificial flowers and alloy wheels are made.
19:55 How It's Made 21/6s.
Gel Caps, Playground Spring Riders, Frozen Pancakes. More everyday items go under the microscope with a look at how objects from gel caps to frozen pancakes are made.
20:20 How It's Made 21/7s.
Paper Umbrellas, Coal, Aircraft Seats, Urns. More everyday items are put under the microscope as we discover how paper umbrellas, coal, aircraft seats and urns are made.
20:45 How It's Made 21/8s.
Aluminium Canoes, Wood Bowls. More everyday items go under the microscope with a look at how objects including aluminum canoes, wood bowls and marimbas are made.
21:10 Estonia 1/3s.
There Is Something Wrong. The investigation concluded that the bow visor was to blame for the incident, but survivors claim this does not match their experiences.
22:00 Estonia 1/4s.
Secrets At The Bottom Of The Sea. Rumours circulated that the MS Estonia ferry was being used to smuggle military equipment, but authorities dismissed this as a conspiracy theory.
22:50 Unexplained & Unexplored 1/3s.
Knights Templar In America. Justin and Emiliano investigate the possibility that the Knights Templar fled Europe and rebuilt their order in the Americas a century before Columbus.
23:40 Unexplained & Unexplored 1/4s.
Killing Meriwether Lewis. Justin and Emiliano investigate an international conspiracy involving the highest levels of government. Could this prove Meriwether Lewis was assassinated?
00:30 Killers Of The Cosmos 1/5s.
Dark Star. Until recently, black holes were only theoretical. Now, scientists know that millions exist and some of them have the potential to be lethal to earth.
01:20 Killers Of The Cosmos 1/6s.
Big Sleep. How will the universe end? Experts discuss the many possible ways that could spark the beginning of the end for the universe including when and why it would happen.
02:10 Alien Encounters 3/3s.
The Prophecies. More hybrids connect to the quantum computer. The combined brainpower is able to crunch unprecedented data and calculate the future - including weather and health.
03:00 Alien Encounters 3/4s.
The Escalation. More humans try to join the hybrid network with high-tech tools. Fearing the diminishment of its power, the U.S. launches an attack on the quantum computer.
03:48 How Do They Do It? 15/6s.
Episode 6. How did the ancient Greeks invent parchment with techniques still used today? And how do they make shuttlecocks, the fasting moving object in sport?
04:12 How Do They Do It? 15/8s.
Episode 8. In Cremona, how do they make modern violins that sound as good as the legendary Stradivarius? And, how do they build houses with volcanic rock?
04:36 How Do They Do It? 15/9s.
Episode 9. How does a Dutch company make the world's fastest superyachts? And, how do they make a new space suit that weighs and costs the fifth of the previous design?
05:00 How Do They Do It? 15/11s.
Episode 11. How do planes take off and land on a beach at one of the world's oldest airports? And, how do they hand-make the national dress of Bavaria, lederhosen?
05:24 How It's Made 18/4s.
Farmed Caviar/Intake Manifolds/Motorcycle Jackets. Discover how motorcycle jackets and shovels and spades are made. Plus, how is farmed caviar produced?
05:48 How It's Made 18/5s.
Wax Figures/Awnings/Sandwich Crackers. Discover how wax figures, awnings, sandwich crackers and pewter tankards are made.
06:12 How It's Made 18/6s.
Pipe Cleaners/Blue Stilton Cheese. Find out how common items like pipe cleaners, blue stilton cheese, smart electric meters and telescopes are made.
06:36 How It's Made 18/7s.
Fish Replicas/Siren Systems/Pre-Packaged Sandwiches. Discover how fish replicas, siren systems, pre-packaged sandwiches and candlesticks are produced.
07:00 How to Build... Everything 1/2s.
Inside a Super Stadium. A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Cow Milking Machine, Football Stadium, and Steamroller?
07:24 How to Build... Everything 1/3s.
World's First Jet Pack. A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Jet Pack, Superbike, and Snow Groomer?
07:48 How to Build... Everything 1/4s.
Army Tank Confidential. A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Jackhammer, Military Tank, and World's Tallest Water Slide?
08:12 How to Build... Everything 1/5s.
Inside a Jet Car. A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Car Shredder, Land Speed Racer, and Bomb Disposal Suit?
08:36 How to Build... Everything 1/6s.
Make a Monster Truck. A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Monster Truck, Interplanetary Rover, and Tanning Bed?
09:00 Morgan Freeman's Through The Wormhole 7/5s.
Can We All Become Geniuses?. Genius lies somewhere in the human mind. Might we augment our biology with technology to unlock the genius inside us all?
09:48 Morgan Freeman's Through The Wormhole 7/6s.
Is The Force With Us?. New research is revealing a hidden force in the universe instantly linking every place in the world and joining the future with the past.
10:36 Morgan Freeman's Through The Wormhole 7/8s.
Can We Hack The Planet?. Scientists are unlocking the secrets of nature in order to tame the elements, harness energy, and even control life. Can we save humanity in time?
11:24 X-Ray Mega Airport 1/4s.
Crossroads of the World. Flights from five continents land at Frankfurt International Airport every day. Track how cargo is distributed and passengers are managed.
12:12 X-Ray Mega Airport 1/5s.
Failure Is Not An Option. Meet the airport's highly-pressured engineering teams, the security personal who enforce the law and many more of Frankfurt's unsung heroes.
13:00 How It's Made 18/12s.
Top & Bowler Hats/Solar Water Heaters. Top and bowler hats, solar water heaters, sticky buns and electrostatic speakers go under the microscope.
13:24 How It's Made 18/13s.
Turntable/Steam Engines/Playground Equipment. Discover how everyday items such as turntables, steam engines, playground equipment and non-stick pans are made.
13:50 How It's Made 19/1s.
Garden Forks/ Toffee/Bundt Pans. How do they make garden forks, English toffee, paint chip cards, and Bundt pans? Find out as more everyday items are put under the microscope.
14:14 How It's Made 19/2s.
Pewter Flasks/Potato Salad/Hydrogen Fuel Cells. How do they make pewter flasks, potato salad and hydrogen fuel cells? Find out as more everyday items are put under the microscope.
14:38 How It's Made 19/4s.
Hunting Decoys/Canned Tomatoes/Lassos. How do they make robotic hunting decoys, scoreboards, and lassos? Find out as more everyday items are put under the microscope.
15:02 How It's Made 19/5s.
Turf Grass/Beef Jerky/Bowling Pins. How do they make turf grass, beef jerky, wood chippers, and bowling pins? Find out as more everyday items are put under the microscope.
15:26 Expedition Unknown 4/10s.
Great Women Of Ancient Egypt. Josh traverses the land of the Nile to reveal the secrets of Ancient Egypt's most powerful and elusive women: Hatshepsut, Nefertiti and Cleopatra.
16:14 Expedition Unknown 4/11s.
Egypt's Lost Queens. Josh continues his journey through Egypt to uncover the secrets of ancient history's most powerful women rulers: Nefertiti and Cleopatra.
17:02 NASA's Unexplained Files 3/12s.
Secret Aliens. Geologists discover alien deposits on the Earth's surface - and the answer could shed light on the cause of the greatest extinction in its history.
17:50 NASA's Unexplained Files 3/13s.
Stonehenge On Mars. A NASA probe captures an image of a familiar structure on the surface of Mars. What made 'Mars Henge'? Plus, how did an Apollo astronaut get sick on the Moon?
18:40 NASA's Unexplained Files 3/14s.
CIA's Secret Revenge. When the Soviet Union unveils its own space shuttle, the CIA hatches a revenge plot. Plus, a missing nuclear weapon could threaten a NASA base in the Arctic.
19:30 How to Build... Everything 1/7s.
Drone Revolution. A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Octocopter Drone, Mega Dump Truck, and Pacemaker?
19:55 How to Build... Everything 1/8s.
Secrets of a Space Suit. A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Jet Wing, Space Suit, and Aerial Tramway?
20:20 How to Build... Everything 1/9s.
On Board an Aircraft Carrier. A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Aircraft Carrier, and IMAX 3D Movie Experience?
20:45 How to Build... Everything 1/10s.
Rise Of The Skyscraper. A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Solar Car, Skyscraper, and Hydroelectric Power Plant?
21:10 How to Build... Everything 1/11s.
Satellites Declassified. A DIY guide for building humanity's greatest inventions. How are a communications satellite, a tower crane and a groundwater replenishment system built?
21:35 How to Build... Everything 1/12s.
Rocketship Revealed. A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Rocketship, Hovercraft, and MRI Scanner?
22:00 How the Universe Works 7/3s.
How Black Holes Made Us. Black holes aren't simply violent monsters. New discoveries reveal their importance in creating stars, giving light, and building the universe itself.
22:50 How the Universe Works 7/4s.
Secret World Of Nebulas. Nebulas are the strange structures of cosmic gas and dust where stars are born and die. New discoveries reveal the secrets of these mysterious places.
23:40 Contact 1/1s.
Alien Evidence. Six experts deploy CIA-developed link analysis software, special ops intelligence training and extensive research to find out if aliens have made contact with Earth.
00:30 Contact 1/2s.
Declassified Breakthrough. The team identifies a pattern of non-terrestrial sounds and odd sightings centred around an earthquake. Could some earthquakes be related to UFO activity?
01:20 NASA's Unexplained Files 3/8s.
Mars' Deepest Secret. A malfunction on the ISS could poison its crew with a deadly gas. A startling image taken by a NASA probe points to evidence that life could exist on Mars.
02:10 NASA's Unexplained Files 3/10s.
Curse Of The Gas Giant. Jupiter is hotter than it should be, and scientists are baffled. There's a strange discovery on Mars and detectives ask for NASA's help on a murder cold case.
03:00 NASA's Unexplained Files 3/11s.
The Sun's Evil Twin. Witnesses photograph two suns in the sky over Indonesia - is this the first sighting of the Sun's dark twin that could spell imminent danger to Earth?
03:48 Secrets Of The Underground 2/2s.
King Solomon's Treasures. Priceless gold and silver artefacts are believed to be lost in King Solomon's hidden mines. Rob and Stefan search for the legendary treasure.
04:36 Secrets Of The Underground 2/4s.
Doomsday Volcano Mystery. Beneath the densely populated city of Naples lies a looming threat. A super volcano may be on the verge of erupting and cause an apocalyptic catastrophe.
05:24 How It's Made 18/8s.
Tapioca Pudding/Snowplows/Paddle Boats. Find out how everyday items such as tapioca pudding, snow ploughs, paddle boats and fibre cement siding are produced.
05:48 How It's Made 18/10s.
Cufflinks/Blueberry Turnovers/Dashboards. Discover how everyday items such as cufflinks, blueberry turnovers, dashboards and earthenware pottery are made.
06:12 How It's Made 18/11s.
Blister Packs/Deli Slicer/Oysters. Everyday items go under the spotlight. How pharmaceutical blister packs, deli slicers and weather vanes are made.
06:36 How It's Made 18/12s.
Top & Bowler Hats/Solar Water Heaters. Top and bowler hats, solar water heaters, sticky buns and electrostatic speakers go under the microscope.
07:00 How to Build... Everything 1/8s.
Secrets of a Space Suit. A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Jet Wing, Space Suit, and Aerial Tramway?
07:24 How to Build... Everything 1/9s.
On Board an Aircraft Carrier. A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Aircraft Carrier, and IMAX 3D Movie Experience?
07:48 How to Build... Everything 1/10s.
Rise Of The Skyscraper. A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Solar Car, Skyscraper, and Hydroelectric Power Plant?
08:12 How to Build... Everything 1/11s.
Satellites Declassified. A DIY guide for building humanity's greatest inventions. How are a communications satellite, a tower crane and a groundwater replenishment system built?
08:36 How to Build... Everything 1/12s.
Rocketship Revealed. A do-it-yourself guide for building humanity's greatest inventions. How do you build your very own Rocketship, Hovercraft, and MRI Scanner?
09:00 Morgan Freeman's Through The Wormhole 7/6s.
Is The Force With Us?. New research is revealing a hidden force in the universe instantly linking every place in the world and joining the future with the past.
09:48 Morgan Freeman's Through The Wormhole 7/8s.
Can We Hack The Planet?. Scientists are unlocking the secrets of nature in order to tame the elements, harness energy, and even control life. Can we save humanity in time?
10:36 NASA's Unexplained Files 3/1s.
Pluto's Stranger Things. Did Apollo astronauts hear unexplained transmissions on the far side of the moon? Plus, an astronomer spots a strange disturbance in Martian atmosphere.
11:24 Richard Hammond's Big 1/1s.
World Biggest Car Factory. Richard explores Volkswagen's giant car plant in Wolfsburg, Germany. He checks out its futuristic technology and discovers how this mega-factory works!
12:12 Richard Hammond's Big 1/2s.
Super Galaxy Plane. Richard takes flight aboard the US Air Force's biggest cargo plane: The C-5M Super Galaxy. Climbing inside its inner workings he learns why it's a record breaker.
13:00 How It's Made 19/6s.
Multi-Tools/Jojoba Oil/Marionettes. How do they make Leatherman multi-tools, jojoba oil, and marionettes? Find out as more everyday items are put under the microscope.
13:24 How It's Made 19/7s.
Fish Decoys/Film Digitization. How do they make fish decoys, cylinder stoves and digitalise film? Find out as more everyday items are put under the microscope.
13:50 How It's Made 19/8s.
Bamboo Bicycles/Chainsaw Art/Breath Mints. How do they build bamboo bicycles, create chainsaw art and make breath mints? Find out as more everyday items are put under the microscope.
14:14 How It's Made 19/9s.
Dinnerware/Air Brake Tanks/Frosted Cereal. How do they make dinner sets, air brake tanks and frosted cereal? Find out, as more everyday items are put under the microscope.
14:38 How It's Made 19/10s.
Clay/Pitted Prunes/Spurs. How do they make clay, pitted prunes, spurs and polyurethane tyres? Find out, as more everyday items are put under the microscope.
15:02 How It's Made 19/11s.
Tasers/Canned Soup/Diving Boards. How do they make tasers, canned soup, diving boards, jaw harps and mouth bows? Find out as more everyday items are put under the microscope.
15:26 Expedition Unknown 4/13s.
Lost City Of El Mirador. Josh concludes his investigation into the mysterious Maya city of El Mirador, including the possible burial of the Snake Kings.
16:14 Silicon Valley: The Untold Story 1/1s.
Secret Sauce. Explores the unique mix of ingredients that fuelled Silicon Valley's rise to becoming the world's technological and economic powerhouse.
17:02 NASA's Unexplained Files 3/16s.
Saturn's Death Star. A NASA spacecraft suffers a malfunction in orbit - can its lone astronaut make it back to Earth? Plus, new evidence emerges over Yuri Gagarin's mysterious death.
17:50 How the Universe Works 3/1s.
Journey from the Centre of the Sun. Our entire existence is a result of the nuclear reactions that occur within the sun. Plunge into this ball of gas and discover how it was created.
18:40 How the Universe Works 3/2s.
End of the Universe. How and when will the Universe end? Gravity and dark matter are poised to annihilate the Universe in a big crunch. Will expansion and dark energy tear it apart?
19:30 How It's Made 23/1s.
Grammy Awards, Bike Lights, Above-Ground Pools. Ever wondered how everyday items are made? More common items are put under the microscope to find out.
19:55 How It's Made 23/2s.
LED stage Lights, Apple Cider. Ever wondered how everyday items are made? More common items are put under the microscope to find out.
20:20 How It's Made 23/3s.
Fishing Line, Industrial Mixers. Ever wondered how everyday items are made? More common items are put under the microscope to find out.
20:45 How It's Made 23/4s.
Storage Sheds, Industrial Fans. Ever wondered how everyday items are made? More common items are put under the microscope to find out.
21:10 How It's Made 23/5s.
Concrete Walls, 3D Printers. How are precast concrete walls, 3D printers, telescopic cranes, and kerosene lamp burners made?
21:35 How It's Made 23/6s.
Car Headlamps, Directional Drills, Pet Combs. How are car headlamps, directional drills, and combs made? And how is stained glass restored?
22:00 You Have Been Warned 5/11s.
Episode 11. Fast-paced countdown of the world's top home-made scientific stunts. Scientists break down the most outrageous clips from the web to show the science behind the stunts.
22:50 You Have Been Warned 5/14s.
Very Innovative People. Fast-paced countdown of the world's top home-made scientific stunts. Scientists break down the most outrageous clips from the web to show the science behind the stunts.
23:40 World's Biggest Shipbuilders 1/4s.
Super Tug. The construction of the vessel's bow and stern begins in Poland, but it's a bumpy start for the new build. Meanwhile in Korea, the XLE4's hull is being completed.
00:30 World's Biggest Shipbuilders 1/5s.
Launch. In Norway, workers prepare for the delivery of the super tug's hull pieces. Back in South Korea, the Tangier is about to take to the open sea for the very first time.
01:20 NASA's Unexplained Files 3/12s.
Secret Aliens. Geologists discover alien deposits on the Earth's surface - and the answer could shed light on the cause of the greatest extinction in its history.
02:10 NASA's Unexplained Files 3/13s.
Stonehenge On Mars. A NASA probe captures an image of a familiar structure on the surface of Mars. What made 'Mars Henge'? Plus, how did an Apollo astronaut get sick on the Moon?
03:00 NASA's Unexplained Files 3/14s.
CIA's Secret Revenge. When the Soviet Union unveils its own space shuttle, the CIA hatches a revenge plot. Plus, a missing nuclear weapon could threaten a NASA base in the Arctic.
03:48 Secrets Of The Underground 2/5s.
Atlantis In America. New theories claim the sunken city of Atlantis may have been in the Americas. From the Bahamas to an ancient site in Louisiana, Rob and Stefan seek the evidence.
04:36 Secrets Of The Underground 2/6s.
Mystery Of The Ice Cave. A strange cave freezes in summer and melts in winter, and a huge sand dune swallows a small child in an instant. Rob and Stefan explore these mysteries.
05:24 How It's Made 18/13s.
Turntable/Steam Engines/Playground Equipment. Discover how everyday items such as turntables, steam engines, playground equipment and non-stick pans are made.
05:48 How It's Made 20/1s.
Native Healing Drums, Raisins, Stereoscopic Viewers, Ribbon Microphones. Find out how Native Healing Drums, Raisins, Stereoscopic Viewers, and Ribbon Microphones are made.
06:12 How It's Made 20/2s.
Horse Bits, Oat Cereal, Turquoise Jewelry. Find out how horse bits, oat cereal, turquoise jewellery, and Electric Scooters are made.
06:36 How It's Made 20/4s.
Stagecoaches, Road Reflectors. Find out how stagecoaches, road reflectors, fire baked pottery, and custom motorcycle tanks are made.
07:00 How It's Made 23/2s.
LED stage Lights, Apple Cider. Ever wondered how everyday items are made? More common items are put under the microscope to find out.
07:24 How It's Made 23/3s.
Fishing Line, Industrial Mixers. Ever wondered how everyday items are made? More common items are put under the microscope to find out.
07:48 How It's Made 23/4s.
Storage Sheds, Industrial Fans. Ever wondered how everyday items are made? More common items are put under the microscope to find out.
08:12 How It's Made 23/5s.
Concrete Walls, 3D Printers. How are precast concrete walls, 3D printers, telescopic cranes, and kerosene lamp burners made?
08:36 How It's Made 23/6s.
Car Headlamps, Directional Drills, Pet Combs. How are car headlamps, directional drills, and combs made? And how is stained glass restored?
09:00 NASA's Unexplained Files 3/2s.
Rise Of The Planet Killer. Apollo 12 astronauts bring back something alive from the moon. Plus, NASA track an asteroid heading towards Earth and make a shocking discovery.
09:48 NASA's Unexplained Files 3/3s.
A President's Close Encounter. Geysers are discovered on a frozen moon, NASA redirects a probe on a mission to find proof of life, and a future US President is eyewitness to a UFO.
10:36 NASA's Unexplained Files 3/4s.
The Earth Next Door. Astronomers detect a potentially habitable planet tantalizingly close to Earth. A chance discovery at NASA reveals a top secret military space program.
11:24 Richard Hammond's Big 1/3s.
Austria's Mega Dam. Richard explores one of the world's biggest man-made engineering projects: the Kölnbrein Dam, which can hold back an incredible 200 million tonnes of water!
12:12 Richard Hammond's Big 1/4s.
Mega Ship. Richard joins the crew of one of the biggest moving objects on earth, the Marie Maersk container ship, on her continuous 28,000-mile voyage from Asia to Europe.
13:00 How It's Made 19/12s.
Navajo Rugs/Crude Oil/Kaleidoscopes. How do they make Navajo rugs, crude oil, kaleidoscopes and titanium dental implants? Find out as everyday items are put under the microscope.
13:24 How It's Made 19/13s.
Space Pens/Reef Aquariums/Metal Caskets. How do they make space pens, reef aquariums and metal caskets? Find out as more everyday items are put under the microscope.
13:50 How It's Made: Dream Cars 1/1s.
Morgan Aero Coupe. Ever wondered how a Morgan Aero Coupe was made? Join the How It's Made crew as they go to its birthplace, explore the inner workings and its gorgeous exterior.
14:14 How It's Made: Dream Cars 1/2s.
Porsche 911. Ever wondered how a Porsche 911 was made? Join the How It's Made crew as they go to its birthplace, explore the inner workings and its gorgeous exterior.
14:38 How It's Made: Dream Cars 1/3s.
Ferrari FF. Ever wondered how a Ferrari FF was made? Join the How It's Made crew as they go to its birthplace, explore the inner workings and its gorgeous exterior.
15:02 How It's Made: Dream Cars 1/4s.
Audi R8. Ever wondered how an Audi R8 was made? Join the How It's Made crew as they go to its birthplace, explore the inner workings and its gorgeous exterior.
15:26 Silicon Valley: The Untold Story 1/2s.
Magnetic Force. Examines the various forces that have made Silicon Valley a magnet for innovators from all over the world. Forces that included government and military funding.
16:14 Silicon Valley: The Untold Story 1/3s.
Lucky Accidents. Charts the circuitous paths to success that lie behind some of Silicon Valley's greatest icons. Includes interviews with key entrepreneurial figures.
17:02 How the Universe Works 3/3s.
Jupiter. How did the gas giants of Jupiter come into being? The inner workings of outer space will be revealed as modern astronomy helps to demystify a series of unusual phenomena.
17:50 How the Universe Works 3/4s.
First Second. A user's guide to the cosmos from the big bang to galaxies, stars, planets and moons. What dramatic events occurred in the first second after the big bang?
18:40 How the Universe Works 3/5s.
Saturn. Saturn's ferocious weather, its evolving ring system and the discovery of active geology on one of its moons have rewritten the textbooks; explore these new discoveries.
19:30 How It's Made 23/7s.
Handcrafted Skis, Septic Tanks. How are handcrafted skis, septic tanks, hydroformed chassis pants, and aquarium windows made?
19:55 How It's Made 23/8s.
Zip Line Brakes, Silk Fibre Lamps. How are zip line brakes, silk fibre lamps, round balers, and comfort shoes made?
20:20 How It's Made 23/9s.
Armoured Vehicles, Tension Fabric Buildings. How are armoured vehicles, tension fabric buildings, rowers, and sculpture enlargements made?
20:45 How It's Made 23/10s.
Mountain Bike Suspensions, Surgical Sutures. How are mountain bike suspensions, surgical sutures, grain dryers, and frying pans made?
21:10 How It's Made 23/11s.
Ski Bindings, Immersion Parts Washers, Mine Ventilation. How are downhill ski bindings, immersion parts washers, mining ventilation and pencil sharpeners made?
21:35 How It's Made 23/12s.
Gingerbread Houses, Livestock Trailers. How are gingerbread houses, livestock trailers, bottom-rolling hangar doors, and toy figurines made?
22:00 Expedition Bigfoot 1/7s.
It Knows We're Here. Mireya's darkest nightmare comes true. Meanwhile, Russell investigates a possible Bigfoot underwater passageway.
22:50 Expedition Bigfoot 1/8s.
The Final Hours. The team believes they've finally narrowed down where Bigfoot has been hiding throughout their expedition. A high-tech drone is brought in to investigate.
23:40 Blowing Up History 4/14s.
Leaning Tower Of Pisa: The New Mystery. The Leaning Tower of Pisa is one of the world's most iconic buildings, but why does it lean? Investigators uncover the reasons for its tilt.
00:30 Blowing Up History 4/15s.
Ghosts Of The Wild West. The infamous gunfight at the O.K. Corral only lasted 30 seconds. Now, experts use cutting-edge technology to uncover the mystery surrounding the event.
01:20 NASA's Unexplained Files 3/16s.
Saturn's Death Star. A NASA spacecraft suffers a malfunction in orbit - can its lone astronaut make it back to Earth? Plus, new evidence emerges over Yuri Gagarin's mysterious death.
02:10 How the Universe Works 3/1s.
Journey from the Centre of the Sun. Our entire existence is a result of the nuclear reactions that occur within the sun. Plunge into this ball of gas and discover how it was created.
03:00 How the Universe Works 3/2s.
End of the Universe. How and when will the Universe end? Gravity and dark matter are poised to annihilate the Universe in a big crunch. Will expansion and dark energy tear it apart?
03:48 Secrets Of The Underground 2/7s.
Lost Pirate City Of Treasure. When an infamous pirate city sunk into the sea, a huge treasure may have gone with it. Could cutting edge technology reveal its resting place?
04:36 Secrets Of The Underground 2/8s.
Quest For The Gold Rush Fortune. In California Rob and Stefan explore a cave, rumoured to house 100 pounds of gold stashed away during the Gold Rush. Can their tech end the mystery?
05:24 How It's Made 20/6s.
Tissues, Travel Trailers, Slippers, Motorcycle Helmets. Find out how tissues, travel trailers, slippers, and motorcycle helmets are made.
05:48 How It's Made 20/7s.
U-Locks, Teepees, Croissants, Rolling Luggage. Find out how U-locks, teepees, croissants, and rolling luggage are made.
