Disc.Sci+1

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.