Sky History2

People claim they have been abducted by aliens. A number of researchers have dedicated their lives to uncovering what is behind this disturbing phenomenon.

Exploring how some archaeologists claim to have found skeletons of extraordinary size. Is it possible the giants actually existed.

Recently declassified FBI files cast new light on the existence of aliens, as well as question whether the Vatican could be hiding proof of extra-terrestrial life.

Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases.

Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases.

Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases.

On the 20th anniversary of his death, the family of Stephen Lawrence reflect on his tragic murder in 1993, as well as their lengthy fight for justice.

In the age of smartphones and social media, more evidence of otherworldly activity has come to light than ever before.

From Stonehenge to crop circles and UFO sightings, Britain holds many mysteries. Has this island been a destination for alien visitors throughout history.

After humanity ceases to exist, the homes built, ranging from mansions to rural farmhouses, face relentless siege by fire, flood, wildlife and time.

The Leopard 2 is probably the best all-around Main Battle Tank today, combining great mobility, a superior gun and excellent protection.

A look at Raoul Moat's shooting spree in Northumberland during the summer of 2010, the huge manhunt that followed and the aftermath of his attacks.

In the age of smartphones and social media, more evidence of otherworldly activity has come to light than ever before.

From Stonehenge to crop circles and UFO sightings, Britain holds many mysteries. Has this island been a destination for alien visitors throughout history.

Stories of heroes and the villains encountered on their adventures are among the most thrilling in all mythology - but they come with controversial theories.

The wild is a rich setting for myths and legends, with countless tales about the wilderness and the fearsome monsters within it.

The violent story of Romulus and Remus, the brutal Vikings and the Valkyries, the Trojan War and exploring the influence of Homer's Iliad on Alexander the Great.

Love is a universal and powerful emotion but it can also be destructive, lust can destroy and betrayal can wound.

Death is a frightening, unsettling prospect for us all. Myths and legends help explore those anxieties but they tell us about more than mortal fear alone.

Face bizarre sights: a spinning island in Argentina, a desert triangle, Ethiopia's colourful pools and a giant figure in Australia's outback.

Experts investigate why so many UFO sightings take place in Los Angeles, determining that the answer may lie underwater.

Himmler's desire to unearth the true origins of humanity led to an attempt to prove the Paleolithic past of Germany's Aryan race.

Why Are They Here?: Every inexplicable flash or strange aircraft makes us believe we've spotted extraterrestrials - but what if they've been watching us all along.

Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases.

In the age of smartphones and social media, more evidence of otherworldly activity has come to light than ever before.