Sky History 2 Saturday

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

Theorists ask whether a currently unidentified species represented in human DNA could be a result of breeding between man and alien in the distant past

Expert investigations into the possibility that reptilian aliens are more than a pop-culture creation and a favourite of works of science-fiction

While the single shot rifle remained a mainstay until the First World War, machine guns had been in development since the final days of the American Civil War

Experts explore how the ambush has revolutionised warfare with the benefit of undetected weapons, from the caltrop to the insidious land mine

The Battle of Thermopylae, fought in 480 BC between the Achaemenid Persian Empire under Xerxes I and an alliance of Greek city-states led by Sparta under Leonidas I

In the Mojave Desert, there is a structure apparently built to bestow everlasting life. According to the architect, its blueprint is from another world

Theorists explore world mythology as they investigate whether extraterrestrials could be responsible for mankind's existence

The events of December 1941 when under cover of a fierce naval bombardment, a taskforce of elite British commandos sailed toward the Norwegian town of South Vaagso

Alice Roberts witnesses the uncovering of a Roman mosaic on farmland in Rutland, and visits the site of a saintly hermit's hovel discovered in the Lincolnshire fens

Alice Roberts visits archaeological digs in the north of Britain, including Scotland's oldest railway, and one of the best-preserved Norman castles

Documentary series exploring anomalies appearing on satellite images to try and get a better understanding of unexplained phenomena

The hunting of Jack the Ripper from space, the battle of the big guns in the land of the Bible, the clash of the mega-beasts, and a visitation from another galaxy

The crucial decisions made by the wartime leader and how he had to navigate big changes and negotiate Britain's relationship with a powerful ally, as the conflict raged on

The catastrophic result of some of the world's worst engineering disasters caught on tape, examining their likely causes, focusing on a DC-10 aeroplane that exploded mid-flight

The Laginas and Matty Blake assist a team of treasure hunters in Utah as they hunt for billons in gold at a site believed to be the Lost Josephine Mine

Part two of two. Alice Roberts revisits the death of Queen Elizabeth I, calling upon forensic pathologist Dr Brett Lockyer to discover the medical facts regarding her final days

The dark story of Hermann Goering, the commander-in-chief of the Luftwaffe and Hitler's designated successor

The career of Albert Speer, widely regarded as Hitler's architect, who was, for most of the Second World War, Reich Minister of Armaments and War Production for Nazi Germany

Theorists offer compelling evidence suggesting that the ancient monolith thought to depict Egyptian pharaoh Khafra once represented an alien being

Examining the notion that the forces of inspiration the ancients attributed to the gods actually emanated from an otherworldly source

A chronological appraisal of the dramatic D-Day story, focusing on the vessels that made the landings on the beaches of Normandy possible

The crucial role ships have played in international conflict over the past 500 years, focusing on the first metal warships

Experts explore the disappearance of civilisations throughout time and across the globe, wondering if clues left in their wake point to an otherwordly explanation