Sky History 2 Tuesday

Investigations into whether the religious relic the Ark of the Covenant could hold connections to an extraterrestrial past

The discovery of the ancient Karahan Tepe megalithic site, displaying perplexing engineering skills, turns the archaeology world on its head

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

The Voynich manuscript, an illustrated codex hand-written in an unknown, possibly meaningless writing system, carbon-dated to the early 15th century

How the race to develop the first atomic bomb was seen as critical to secure world dominance

Experts examine evidence that aliens may have visited Mecca's Grand Mosque and Jerusalem's Temple Mount

The ancient site of Gobekli Tepe, which hallenges what archaeologists believe about the past

Experts take a look at the weapons dominating from the skies, focusing on the operating principles of arrows, rockets, and bombs

A look from the Russian perspective at the siege of Moscow, where stretched Soviet troops adopted a 'not a step back' policy while facing the advancing German army

The supposed UFO crash in Shag Harbour, Nova Scotia on October 4, 1967. Locals claim to have seen and heard the craft fall into the waters off the shoreline

Egypt is home to some of the world's great ancient treasures - and the Sphinx is one of the greatest of all. Now, recent discoveries are shedding new light on it

Mikey Kay and Garth Baldwin visit Jerusalem in a bid to determine the true fate of the Knights Templar and the possible whereabouts of the Holy Grail

The origin of genius, considered to be the ability to change the world in an incredible way

Helen Skelton and Alex Langlands venture to Lindisfarne and the Isle of Man to unearth the secrets of Viking burial grounds

Professor Alice Roberts is in Glasgow to investigate the impact of steam power on major towns in the 18th and 19th centuries, and learns about the arrival of migrant workers

Perplexing and unusual historical objects, investigating whether a machine can read personalities. Plus, an ancient golden mask painted with human blood and a cursed chicken pot

The team investigates artefacts associated with Norse and Scottish clans that settled in Ireland after losing their land in the Scottish Wars of Independence

Visits to the most remote, cold and inhospitable places on the planet to reveal great mysteries that have been frozen in time. This episode considers Ecuador's mountain mystery

Experts examine evidence that aliens may have visited Mecca's Grand Mosque and Jerusalem's Temple Mount

The ancient site of Gobekli Tepe, which hallenges what archaeologists believe about the past

Helen Skelton and Alex Langlands venture to Lindisfarne and the Isle of Man to unearth the secrets of Viking burial grounds

The connection between the development of military devices and the aftermath of their usage - dynamics that shaped several millennia of human fate

The hunt for hidden treasures and why the prospect of their recovery fires the human imagination. However, there is a chance such riches may not exist

Former staff of top-secret facility Hangar 18 in Dayton, Ohio, reveal stories of mysterious activity at the base, including alien bodies, flying saucer debris and cryonic chambers