Sky History 2 Friday

The US military has denied that the infamous 1947 Roswell crash was anything other than a weather balloon, but FBI files include a memo to J Edgar Hoover

Experts investigate mysterious beings with big heads and eyes, whose images were found carved into rocks. Known as the 'greys', they are rumoured to be alien life forms

Garth makes a solo journey to explore a deserted island, where he discovers a mysterious cross

Documentary following the efforts to rescue one of the most important and influential seaplanes of the Second World War when it became stranded in the Loch's notorious waters

The start of the television industry, detailing how Philo T Farnsworth invented the device in the 1930s - and how industrial titan RCA, in essence, ruined his life with its tactics

Some 2,600 years ago, The Ark of the Covenant, the sacred relic of the ancient world, suddenly disappeared from history. Where did it go and why?

Investigations into the possibility that insects have descended from, and could have links to, extraterrestrials which landed on Earth thousands of years ago

Madness frontman Suggs and militaria expert Stephen Taylor go in search of relics from the United States' elite 82nd airborne infantry division

Tony Robinson travels along the north Norfolk coast, finding out how the area maintained its rural identity despite the industrial changes of the Victorian age

Fabien and Céline Cousteau follow top-secret clues as they hunt for a long-lost shipwreck in the Bermuda Triangle using cutting-edge technology

How Ricimer, a soldier of barbarian descent, became the power behind the throne of the failing empire, betraying his former friends in the process

A team of archaeologists embarks on a quest to unearth the most treasured and famous artefact in human history - the Ark of the Covenant

Mike helps build a rare Volkswagen truck. Shafin convinces Avery to clean up his yard with the help of a monster truck

Though the Admiralty were convinced the Allies had the expertise to defeat Germany, Gilbert Roberts and the Wrens started devising wargaming tactics to combat U-boat formations

William Harley and Arthur Davidson's launch of motorcycles, a revolutionary invention that changed the transportation industry for ever

A man who claims to have heard a loud hissing sound before seeing a saucer-shaped object rise out of his neighbour's lagoon

The police officer who alleges he heard a loud roar and saw a flame rising into the air, before witnessing an oval-shaped object take flight

Perplexing UFO encounters of recent times, focusing on a case in 2018 off the west coast of Ireland, in which pilots saw bizarre lights through their cockpit windows

From the terrifying Tower of London to a hotel of horrors, discover the dark secrets hidden within these foreboding fortresses

Some 2,600 years ago, The Ark of the Covenant, the sacred relic of the ancient world, suddenly disappeared from history. Where did it go and why?

Investigations into the possibility that insects have descended from, and could have links to, extraterrestrials which landed on Earth thousands of years ago

Mike helps build a rare Volkswagen truck. Shafin convinces Avery to clean up his yard with the help of a monster truck

Terry Schappert explores the warrior society of the Mayans, learning about the weapons they used and investigating the ritual of human sacrifice

How Ricimer, a soldier of barbarian descent, became the power behind the throne of the failing empire, betraying his former friends in the process

Fabien and Céline Cousteau follow top-secret clues as they hunt for a long-lost shipwreck in the Bermuda Triangle using cutting-edge technology

Experts scrutinise prehistoric ruins, asking whether humans could have built such advanced structures alone, and examine the possibility of alien intervention