Disc.Sci+1

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.

Dark matter is one of the greatest mysteries of the universe facing scientists today. Could it be the cause of supermassive black holes and mass extinctions.

Astronomers have discovered bizarre planets very different to Earth out in the galaxy, but will we ever locate a planet similar to our own.

Did Earth Have Two Moons? A startling discovery suggests the hellish clouds of Venus may be the origin of life on Earth. Plus, did the Earth once have two moons.

A probe mysteriously malfunctions as it enters deep space. Astronomers find evidence of an invisible planet in a distant solar system.

The Superperformance GT40 is a stunning recreation of the original that made racing history at Le Mans in 1966. How is this impressive vehicle made.

Ever wondered how a Porsche 918 Spyder is made? Join the How It's Made crew as they go to its birthplace and explore its gorgeous exterior.

Ever wondered how an Aston Martin Vanquish is made? Join the How It's Made crew as they go to its birthplace and explore its gorgeous exterior.

Ever wondered how a Zenvo ST 1 is made? Join the How It's Made crew as they go to its birthplace and explore its gorgeous exterior.

Astronomers detect a potentially habitable planet tantalizingly close to Earth. A chance discovery at NASA reveals a top secret military space program.

Two cosmonauts fight for their lives, trapped inside a capsule in a frozen lake. NASA astronomers are spooked when the full moon affects their experiments.

Did Earth Have Two Moons? A startling discovery suggests the hellish clouds of Venus may be the origin of life on Earth. Plus, did the Earth once have two moons.

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.

Clayton must haul his 20,000-lb dinosaur fossil to a lab for analysis. The Harris-Bolan clan chases poachers off their land and Jared makes a final bid to make money.

Confidential CIA files reveal a secret war for space between America and the Soviets. And, experts investigate American espionage during the Apollo programme.

Experts investigate the Lunar Landing Research Vehicle that nearly killed Neil Armstrong during training. Some believe this proves why the moon landing is fake.

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.

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.

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.

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.

It's been tipping over for 800 years - what's the gravity-defying magic behind Pisa's leaning tower? And, how are chocolate digestive biscuits manufactured.

How did the ancient Greeks invent parchment with techniques still used today? And how do they make shuttlecocks, the fasting moving object in sport.

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.

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

Some think the waving US flag on the moon proves that NASA faked the lunar landing. Experts' quest for the truth leads to some of Hollywood's biggest names.