Sky History 2 Today

Theorists investigate a depiction of a stegosaurus found at Angkor Wat in Cambodia, comtemplating whether it suggest that alien species killed off the dinosaurs

A team of scientists examines the remains of the Puma Punku temple in Bolivia in a bid to determine whether it could have been designed and constructed by extraterrestrials

A team of experts looks into the Orion constellation to investigate whether this could have been an entry point for aliens visiting Earth

How religious transformation, climate change, and a weak pharaoh brought the age of the pyramid builders to an abrupt end

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

Reported accounts of genuine alien encounters, examining more previously off-limits information to investigate where in the universe UFOs could be coming from

A look at the world's hottest UFO zones, where physical and paranormal phenomena, unidentified objects and aliens are reported with alarming frequency

Experts assess the possibility that alien invaders could opt to destroy life on Earth rather than attempt to enlighten mankind

The top 10 accounts of encounters between the Earth's military forces and extraterrestrials

The documentary concludes with a look at a 1943 crash in Gibraltar, which killed Polish Prime Minister in exile Wladyslaw Sikorski

People who have survived natural disasters, such as tornadoes and tsunamis, share their stories. This episode focuses on an earthquake in Alaska

Dr Fern Riddell and Dr Karen Bellinger examine the mysterious, isolated Easter Island, in the southeastern Pacific Ocean

A look at the proclamations of French seer Nostradamus - from the French Revolution and the rise of Adolf Hitler, to the terrorist attack of 9/11 and the coronavirus

A paraglider and a vulture become entwined high above the Himalayas, kayakers have a close encounter with a whale and a tidal bore washes motorists off the road

Campers experience the raw power of a lightning strike, a car falls victim to a huge boulder and a gorilla gets acquainted with a tourist

Events involving military and intelligence agencies, with suggestions of cover-ups relating to two unexplained incidents in the east of England in 1956 and 1980

The actor examines the Piper Alpha oil platform explosion of July 1988, one of the most devastating man-made catastrophes to date, in which 167 workers died

The impact of Danish battle axes, Saxon shields and Norman lances on the Battle of Hastings in 1066

Edward IV dies unexpectedly, throwing the future of England in the air. Richard III makes a grab for power, while Margaret makes her own move

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

Shadows and a voice reveal a property's dark history, a family discover their home is haunted by spirits who died horrible deaths, and a showman records evidence of a real ghost

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

Experts scrutinise the paintings, journals and technical drawings of Leonardo Da Vinci to establish whether they hide evidence of extra-terrestrial beings

Investigations into the possibility that sightings of alien beings or UFOs may actually be evidence of time travellers from the future

Dr Fern Riddell and Dr Karen Bellinger examine the mysterious, isolated Easter Island, in the southeastern Pacific Ocean

A look at the proclamations of French seer Nostradamus - from the French Revolution and the rise of Adolf Hitler, to the terrorist attack of 9/11 and the coronavirus

Events involving military and intelligence agencies, with suggestions of cover-ups relating to two unexplained incidents in the east of England in 1956 and 1980

Experts investigate macabre places associated with death, and question whether otherworldly connections could be responsible for strange disappearances and suicides