Sky History 2 Today

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

Ancient astronaut experts examine whether the minds of Einstein and Galileo could have been superhuman and explore extraterrestrial connections with the historical figures

Suggestions of cover-ups over the fact extraterrestrials with a superior knowledge of science and engineering landed on Earth thousands of years ago

Egyptologists think that investigating the turmoil of the succession of Pharaoh Khufu could solve one of ancient history's most enduring mysteries - the riddle of the Sphinx

Operation Husky, a massive amphibious invasion of the island of Sicily carried out by Allied Forces in July 1943

Reported accounts of alien encounters, hearing from people who believe that beings from other worlds have the means to control humanity

Theorists investigate whether extraterrestrials might have inspired Adolf Hitler to embark on a crazed quest for global domination, and try to track down the Fuhrer's alien secret

Garth Barnard investigates how thousands of soldiers during the Second World War died in catastrophic air accidents and tragic training crashes

Tornadoes, tsunamis, earthquakes, meeting people who have survived some of the most mind-blowing natural disasters

Dr Fern Riddell and Dr Karen Bellinger examine the death and final resting place of Genghis Khan, finding such information to be shrouded in mystery

The mystery surrounding the origin of enchanting crystal skulls that believe were craved thousands or even tens of thousands years ago by an ancient Mesoamerican civilisation

A paraglider is swept up by a freak windstorm, an avalanche in the Himalayas leaves hikers in grave danger and an emu falls in love

A jogger has a scary run-in with a cougar, while a crafty elephant commits motorway robbery and a octopus does a disappearing act

The Hudson Valley area of upstate New York, where more than 7,000 UFO sightings have been reported

The actor explores six tragic disasters, focusing on the Zeebrugge ferry disaster of March 1987 in which the Herald of Free Enterprise capsized, killing 193 passengers and crew

Karl Ude-Martinez and Kevin Hicks continue their look at how weapons and body armour were developed, with a look at the impact of the War of the Roses

As the bloody civil wars rage on, Margaret manages to keep hold of her lands and her life under Yorkist rule, while Warwick leads a rebellion against Edward

Deep in Wales' long memory is a history of violence and bloody curses, where the deeds of noblemen and warrior princes come back to haunt the living world

A mother discovers her daughter's imaginary friend is a demonic entity, a historic photograph triggers a haunting, and a family move into a home only to discover it's haunted

Experts analyse whether natural causes were responsible for the volcanoes, earthquakes and floods of ancient times - and the possibility that it was down to aliens

Experts investigate the work of Nasa and secret government files relating to extraterrestrial activity, looking for proof of alien contact in the recent or distant past

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

Dr Fern Riddell and Dr Karen Bellinger examine the death and final resting place of Genghis Khan, finding such information to be shrouded in mystery

The mystery surrounding the origin of enchanting crystal skulls that believe were craved thousands or even tens of thousands years ago by an ancient Mesoamerican civilisation

The Hudson Valley area of upstate New York, where more than 7,000 UFO sightings have been reported

Giorgio Tsoukalos draws on evidence from past series as he asks whether extra-terrestrials could have introduced the Greeks and Egyptians to electricity