Sky History 2 Friday

Experts explore the similarities between huge pyramids across the world, and hypothesise on whether extraterrestrials could have influenced their construction and design

Ancient astronaut theorists hunt for evidence linking Bigfoot to alien species from the distant past, and ask whether the giant ape-like creature could be an extraterrestrial

The story of the submarine and their role in naval warfare, from early beginnings in the American War of Independence to the modern day

The survivors and the winners of the Second World War wanted to blame the Germans. At the time, no one knew whether the Germans had really broken with the Nazis

Experts investigate the startling mysteries captured by satellites orbiting the Earth - from hidden worlds to unexplainable natural phenomena

Experts explore the similarities between huge pyramids across the world, and hypothesise on whether extraterrestrials could have influenced their construction and design

Ancient astronaut theorists hunt for evidence linking Bigfoot to alien species from the distant past, and ask whether the giant ape-like creature could be an extraterrestrial

Alice Roberts explores the history of Oxford during the Civil War, when the city became a power base for the royalist forces and a rival capital for nine years of conflict

Dan Jones explores the history of Leeds Castle in Kent, from its origins as a royal Saxon family's manor to its current ownership by a specially created charity

The survivors and the winners of the Second World War wanted to blame the Germans. At the time, no one knew whether the Germans had really broken with the Nazis

Stories of hospital ships and those who served on them, including the tragic story of the sinking of the Titanic's sister vessel, The Britannic

An examination of strange lights spotted above the Hessdalen Valley in Norway, a 12-year-old girl in Russia with superhuman strength and proof of an alien structure on an asteroid

Satellite images capture thousands of straight lines, covering thousands of square miles, etched out of the Bolivian desert over thousands of years

Craig and co-presenter Sarah Cruddas head to central Scotland, which has its own 'Area 51', known as the Falkirk Triangle, known for UFO activity

The obsession with locating ancient cities lost to time. Some of these places are recorded in historical texts, while others are part of oral traditions and folklore

The host highlights the fact that throughout history, every major civilisation has believed in curses and their power to inflict harm on the unsuspecting

The infamous Borgia family was devastated when favourite son Juan was murdered in 1497. Here, modern experts try to identify the killer

The history of the Hermetic Order of the Golden Dawn, which studied practised occult Hermeticism and metaphysics during the late 19th and early 20th centuries

Experts explore the similarities between huge pyramids across the world, and hypothesise on whether extraterrestrials could have influenced their construction and design

Ancient astronaut theorists hunt for evidence linking Bigfoot to alien species from the distant past, and ask whether the giant ape-like creature could be an extraterrestrial

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

Tony Robinson sets off on a 45-mile hike through the countryside of the Weald in Kent and the Downs of East Sussex to discover the area's rich and surprising Tudor heritage

Residents of a Texas town report strange lights in the night sky, scientists record one of the loudest sounds in the natural world and a fishing trawler vanishes in calm waters

The events of 2017, when astronomers at the Pan-STARRS observatory saw an object they named Oumuamua, the very first observed visitor from interstellar space