Disc.Sci+1

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.

Stalin At Area 51. Experts investigate whether the Roswell UFO incident was a Soviet conspiracy masterminded by Stalin, or is the story just another cover-up.

When NASA discovers something strange on Saturn's biggest moon, experts investigate if aliens feeding on the world's electric atmosphere could be the culprit.

The Alien Mysteries. Half of the star systems in our galaxy have two stars, possibly creating habitats for alien life. Here, binary stars fling entire worlds into space.

Rise Of The Ice Giants. New research shows the migration of ice planets may have helped start life on Earth, and stopped it being destroyed. How are they so vital.

Quasars are the brightest objects in space, powered by black holes, and the most mysterious. How do they shape the universe and ultimately aid in its destruction.

Richard visits the world's tallest building: the Burj Khalifa in Dubai. His vertical mission includes climbing the biggest lightening conductor on earth.

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.

How do they make clay, pitted prunes, spurs and polyurethane tyres? Find out, as more everyday items are put under the microscope.

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.

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.

Richard explores elements that engineering projects have in common. And, he reveals how the challenges get bigger when something is built big.

Danny Forster visits the most expensive public works project ever in California. Crews are racing to earthquake-proof the San Francisco-Oakland Bay Bridge.

Priceless gold and silver artefacts are believed to be lost in King Solomon's hidden mines. Rob and Stefan search for the legendary treasure.

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.

The Milky Way is dying and scientists are trying to discover what's killing it. Scientists must trace its whereabouts over the past 13.6 billion years.

Once thought to be an inevitable disaster, scientists now have the technology to prevent asteroids from hitting the Earth. How are they working to do this.

For four years, the Messenger space probe sent images of Mercury, the solar system's smallest planet, closest to the Sun. Could it threaten life on Earth.

Find out how Native Healing Drums, Raisins, Stereoscopic Viewers, and Ribbon Microphones are made.

Find out how horse bits, oat cereal, turquoise jewellery, and Electric Scooters are made.

Find out how stagecoaches, road reflectors, fire baked pottery, and custom motorcycle tanks are made.

Find out how tissues, travel trailers, slippers, and motorcycle helmets are made.

Find out how U-locks, teepees, croissants, and rolling luggage are made.

Find out how prams, factory-build homes, wood flutes, and bicycle tyres are made.

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.