Sky History 2 HD Saturday

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

Experts examine the story of Greek hero Hercules and explore archaeological discoveries that suggest a real person may have inspired the legend

The stories behind the cursed spirits of noblemen, warrior princes and other royalty wander that haunt the castles of England

How the restless spirits of victims of cruel torture and untimely death are said to linger in the haunted castles of Scotland

How the seeds of Japan's Second World War defeat in 1945 were sown a decade earlier with the occupation of Manchuria in China

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