Sky History 2 Sunday

A look at suggestions that extraterrestrials could be altering human DNA and repopulating the Earth with alien-human hybrids

A team of ancient alien theorists explores the nothon that ghosts and angels could actually be visitors from other-worldly realms

Experts contemplate whether Hawaii's islands may once have been inhabited by extraterrestrials and examine whether its volcanoes could provide a portal between space and time

The influence that popular culture and entertainment have on daily life. As people gravitate to larger-than-life stories, outlandish myths can begin to spread

Mysteries found in desert landscapes, featuring a constant inferno in Turkmenistan, mysterious circles in the Namibian desert and secret electric blue ponds in Utah

A look at suggestions that extraterrestrials could be altering human DNA and repopulating the Earth with alien-human hybrids

A team of ancient alien theorists explores the nothon that ghosts and angels could actually be visitors from other-worldly realms

At the sacrificial alter El Castillo, researchers find new evidence that could shed light on the Maya - a sacred well at Chichen Itza where thousands were deposited

Experts analyse the remains of two Viking boats, that were filled with dead bodies

Following the Cuban revolution, Fidel Castro looked to exert his influence in Venezuela. This programme assesses Cuba's residual part in Venezuela's future

This latest collection of objects comprises an intriguing 35,000-year-old box, a steam-powered gun and a monument that may have been an Aztec throne

At the sacrificial alter El Castillo, researchers find new evidence that could shed light on the Maya - a sacred well at Chichen Itza where thousands were deposited

Experts analyse the remains of two Viking boats, that were filled with dead bodies

Following the Cuban revolution, Fidel Castro looked to exert his influence in Venezuela. This programme assesses Cuba's residual part in Venezuela's future

From death stars to satellites, experts explore the likelihood of an extra-terrestrial strike, considering whether governments could be secretly preparing for an alien attack

Investigating the plans and goals of the world's most secretive organisations, considering whether elite groups of power players could be plotting the fate of the world

Three Portuguese girls claimed to have been visited by the Virgin Mary in 1917, before two of them died. The survivor reveals her long-kept secret

The rumour that the tomb of Turco-Mongol conqueror Timur is cursed such that whoever disturbs it will face a calamity

A wave of UFO sightings in the Brazilian city of Colares causes mass panic, and in Australia, a flying object causes a serious problems for a farmer

Officials struggle to decide how to respond when a UFO is spotted hovering over an air force base, and a priest claims to have interacted with a saucer-shaped metallic craft

A look at suggestions that extraterrestrials could be altering human DNA and repopulating the Earth with alien-human hybrids

A team of ancient alien theorists explores the nothon that ghosts and angels could actually be visitors from other-worldly realms

Experts contemplate whether Hawaii's islands may once have been inhabited by extraterrestrials and examine whether its volcanoes could provide a portal between space and time

A look at some of the most famous missions in modern history. Special operations require skilful people, but as this documentary reveals elite technology plays a part too

This latest collection of objects comprises an intriguing 35,000-year-old box, a steam-powered gun and a monument that may have been an Aztec throne

Audacious jail and prison breaks, with insight from Hayes, whose legendary escape from a Turkish prison was the basis for the Oscar-winning movie Midnight Express

The ancient site of Gobekli Tepe, which hallenges what archaeologists believe about the past