Sky History 2 Tuesday

Giorgio Tsoukalos examines the notion that extraterrestrials could have left clues to the universe's mysteries

A team of scientists examines the remains of the Puma Punku temple in Bolivia in a bid to determine whether it could have been designed and constructed by extraterrestrials

Garth Barnard investigates the Turweston Wellington Collision of July 8, 1944, when two bombers collided killing 13 soldiers, before the war for them had even begun

Once the flagship in the United States Lines, the SS America served her owners for 55 years until she was unceremoniously left abandoned in the Canary Islands

How, between September 1940 and November 1941, things intensified as Nazi Germany exerted its dominance over Europe

Giorgio Tsoukalos examines stories of powerful shining beings who came down from the sky, contemplating whether these tales have been inspired by ancient alien visitation

Experts investigate the mysterious origins of mummification and any possible influences exerted by extraterrestrials

Inspired by the story of his two cousins who died at sea in the Second World War, the actor heads to Scapa Flow where he finds treasure that could link to his family

Dan Jones explores the history of Carrickfergus Castle in Co Antrim, a stronghold key to understanding the relationship between Britain and Ireland

Professor Alice Roberts explores the story of Stewart Britain by visiting Stirling, and joins a team of archaeologists in uncovering remnants of the docks

Part one of two. An exploration of the history of ancient Greece, investigating the sites that defined their achievements and legacies

The design, service and loss of the Achille Lauro, a ship which suffered two serious collisions, multiple onboard fires and was even hijacked by PLO terrorists in 1985

The eight artists are challenged to make a light fixture using techniques such as colour wrapping, hot sculpting and making bubbles with baking soda

The seven contestants put their skills into making a glassy robot prototype that can preform chores and tasks

Alice Roberts visits Happisburgh in Norfolk, where rare artefacts challenge the belief that the earliest human beings would not have been able to survive in northern Europe

After thriving for three centuries, the Celts turned from traders into proven warriors, weapon-masters and metal artists in a time that became their golden age

The bombing of Greenpeace ship the Rainbow Warrior in July 1985, which resulted in the death of photographer Fernando Pereira

A reported sighting of 'Bigfoot' by a combat engineer training in the deep forests of north-west Oregon

Unexplained phenomena occurring at Big Bend National Park, where a series of incidents has convinced some that secret alien activities are taking place there

Unexplained phenomena occurring at Death Valley National Park, where a series of deaths and disappearances have taken place

Giorgio Tsoukalos examines stories of powerful shining beings who came down from the sky, contemplating whether these tales have been inspired by ancient alien visitation

Experts investigate the mysterious origins of mummification and any possible influences exerted by extraterrestrials

Alice Roberts visits Happisburgh in Norfolk, where rare artefacts challenge the belief that the earliest human beings would not have been able to survive in northern Europe

The actor continues his adventure in Scapa Flow, plunging down on the wrecks of a German warship and an experimental submarine aircraft called the M2

Part one of two. An exploration of the history of ancient Greece, investigating the sites that defined their achievements and legacies

Professor Alice Roberts explores the story of Stewart Britain by visiting Stirling, and joins a team of archaeologists in uncovering remnants of the docks

Ancient astronaut theorists explore the idea that meteorites could be pieces of extraterrestrial technology