Disc.Sci+1

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.

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.

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.

Using material salvaged from scrap yards, Adam and two colleagues design and build three motorised monsters of destruction, inspired by post-apocalyptic worlds.

Adam wants to build his own version of King Arthur's legendary sword - Excalibur. Using the iron found in a meteorite, he attempts to make an indestructible weapon.

The Nazca Lines are mysterious symbols that have been carved into the Atacama Desert more than a thousand years ago. How and why were they created.

Alcatraz is one of the most famous prisons in the world. Experts investigate its remarkable engineering secrets and why it was so hard to escape from.

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.

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.

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.

Ever wondered how a Lotus Evora is made? Join the How It's Made crew as they go to its birthplace and explore its gorgeous exterior.

More everyday items go under the microscope. How are objects including kimchi and traditional parquet floors made.

More everyday items go under the microscope. How are objects including raw pet food and replica police lanterns made.

More everyday items go under the microscope. How are objects including calissons and diving watercrafts made.

More everyday items go under the microscope. How are objects including game tables and art glass wall sconces made.

More everyday items go under the microscope. How are objects including Marseille soap and Laguiole pocket knives made.

Adam joins forces with a NASA engineer to rebuild a rocket-propelled super weapon. Originally built to breach barbed wire in WWII, they aim to fix its fatal flaws.

Danny explores the Port of Rotterdam, where crews are in the middle of the largest Earth-moving project in history, to triple the port's capacity.

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.

Focuses on creative garage innovators taking inventions to the next level, from using fire to charge phones to creating the world's fastest electric dragster.

After an informant tells of an alien that reportedly escaped from Area 51, Chuck and the team go to Tonopah, NV, to investigate whether it still roams the area.

Earth is hit by 100 tons of rock from space every day. Most burn up in the atmosphere, but a single rock wiped out the dinosaurs. Could it happen again.

When a massive star dies it can direct a blast of radiation that would obliterate life of earth. What are the chances of this event occurring.

The NASA tapes that recorded the Apollo 11 moon landing are missing. Experts examine whether their disappearance is part of a cover-up.

Pyramids in the deserts of Sudan are the ruins of a powerful lost civilisation that rivalled Egypt. However, why are the pyramids there and who built them.

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.

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.

A series of recent UFO sightings brings Chuck Zukowski's team to Missouri, the home of the 1973 Piedmont lights incident. Is history repeating itself.

Richard explores Volkswagen's giant car plant in Wolfsburg, Germany. He checks out its futuristic technology and discovers how this mega-factory works.

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.

Rob Nelson investigates the mysterious rocks at the bottom of Lake Michigan known as Underwater Stonehenge. Plus, the search for escape tunnels in Alcatraz.

Rob Nelson investigates mysterious tunnels under Denver's airport. Plus, in Ohio he tries to uncover the secrets of a giant serpent-shaped mound.

Scientists have discovered evidence of a mysterious ninth planet on the very edge of our solar system, could its moons support extra-terrestrial life.

The Universe is a violent and dangerous place. From exploding stars and colliding galaxies to nebula shockwaves - what are the worst places in the Universe.

The Secret Origin. Supermassive black holes are so large they devour stars and shape galaxies. The latest science may answer why they grow so large.

Discover how patterned glass panels and road cases are made. We also see how stop-frame animation is achieved.

Everyday items go under the spotlight. How are industrial wire ropes, living walls and large format cameras made.

Discover how chocolate coins, pedal cars and latex swords are made in the latest episode of this popular series.

Discover how motorcycle jackets and shovels and spades are made. Plus, how is farmed caviar produced.

Discover how wax figures, awnings, sandwich crackers and pewter tankards are made.

Find out how common items like pipe cleaners, blue stilton cheese, smart electric meters and telescopes are made.

Experts discuss theories related to the world's most famous cryptid, Bigfoot. Recently uncovered evidence unveils a creature far fiercer than previously believed.

Experts explore a new theory surrounding Scotland's Loch Ness Monster. The creature may not only be real, but possibly more dangerous than ever imagined.

Experts examine whether an interdimensional portal in the Alaska Triangle led to the disappearance of an aeroplane carrying 44 military personnel in 1950.

Bigfoot hunters investigate whether a huge, ape-like beast is responsible for a string of disappearances and mutilations in the Alaskan wilderness.

Scientists have discovered evidence of a mysterious ninth planet on the very edge of our solar system, could its moons support extra-terrestrial life.

The Universe is a violent and dangerous place. From exploding stars and colliding galaxies to nebula shockwaves - what are the worst places in the Universe.

The Secret Origin. Supermassive black holes are so large they devour stars and shape galaxies. The latest science may answer why they grow so large.

Richard explores Volkswagen's giant car plant in Wolfsburg, Germany. He checks out its futuristic technology and discovers how this mega-factory works.

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.

A Missouri man who claims UFOs are stalking him contacts Chuck and the team for help. Their investigation uncovers a dark secret which may explain this reported activity.

A series of strange animal deaths and UFO sightings brings Chuck to Colorado. Reports of authorities ignoring these incidents suggest a government cover-up.

Chuck receives a map supposedly leading to a hidden cache of recovered materials from the Roswell incident. He and his team go on an epic treasure hunt to find them.

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.

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.

Rob Nelson hunts for a mass grave that could expose a dark secret. Plus, a giant lake is mysteriously disappearing and Rob set off to find out why.

Rob examines bizarre markings that suggest a violent clash between prehistoric beasts. In California, he explores if a strange lake is a home to alien life.

Life & Death On The Red Planet. Once there was life on Mars - but scientists believe a series of devastating mass extinctions transformed a watery planet into a desert.

Countdown of NASAs top six the deadliest stars - 'vampire' stars that drain their neighbours, supernovas and white dwarfs that destroy planets.

Despite Pluto's appearance as a dark and frozen world, scientists are investigating whether there might be warm liquid water beneath the surface.

Discover how fish replicas, siren systems, pre-packaged sandwiches and candlesticks are produced.

Find out how everyday items such as tapioca pudding, snow ploughs, paddle boats and fibre cement siding are produced.

Discover how everyday items such as cufflinks, blueberry turnovers, dashboards and earthenware pottery are made.

Everyday items go under the spotlight. How pharmaceutical blister packs, deli slicers and weather vanes are made.

Top and bowler hats, solar water heaters, sticky buns and electrostatic speakers go under the microscope.

Discover how everyday items such as turntables, steam engines, playground equipment and non-stick pans are made.

More everyday items go under the microscope. How are objects including kimchi and traditional parquet floors made.

More everyday items go under the microscope. How are objects including raw pet food and replica police lanterns made.

More everyday items go under the microscope. How are objects including calissons and diving watercrafts made.

More everyday items go under the microscope. How are objects including game tables and art glass wall sconces made.