MysteryX HD Sunday

Experts investigate the mystery of the Solway Firth Spaceman - a spacesuit-cladded figure who appeared in a photograph taken in Cumbria

Investigating beliefs held by some experts that many atmospheric light shows are actually caused by extraterrestrials

Considering why the space race stopped at the moon and whether there any truth to rumours of a secret Space Force developed by America for missions beyond Earth's orbit

The Cambodian Civil War, which was contested between 1967 and 1975. The struggle was complicated by the influence and actions of the allies of the two warring sides

A look at the Battle of Actium in 31 BC, a decisive naval engagement that pitted the forces of Octavian against those of Mark Antony and Cleopatra

Science shines a light on the dark side of Ancient Egypt, from a 5,000-year-old homicide to drug-fuelled debauchery - and one very shocking revelation

Modern science helps uncover the secrets of health and wealth, from Queen Hatshepsut's death to a case of breast cancer

Part two of two. Adam, Gwen and Julie recall personal encounters with UFOs, before it is revealed that each individual has time missing from their plotted recollections

Homicide detective Rod Demery and scientist Professor Turi King visit the ancient city of Verona, Italy, to examine the death of a 14th-century warlord

Perplexing historical objects include the Jericho Head, a 9,000-year-old clay-covered artifact. Plus, a 1950s machine built to control the weather

An intriguing artefact in a museum in Southwark, south London. This strange brown felt object stands about eight inches high and is covered in 88 human teeth

A contemplation over whether Earth could have been visited by extra-terrestrials in its ancient past. New discoveries suggest contact may have influenced human art and technology

The city of Melbourne's long history of UFO sightings. This edition catches up with a local person to hear about their incredible UFO encounters

How recent discoveries are redefining spiritual, cultural and migration histories across continents and millennia

In China, a burial site reveals a child's remains marked with peculiar modifications. This raises questions about Chinese mortuary practices and more

Perplexing historical objects include the Jericho Head, a 9,000-year-old clay-covered artifact. Plus, a 1950s machine built to control the weather

Investigating monster tales told throughout history and whether the explanation could be extraterrestrial

American serial killer couple Raymond Fernandez and Martha Beck, who teamed up to con lonely women across the nation, posing as siblings to rob them of their riches

Ancient remains, rare tools, a sabre-toothed kitten and a silver hoard reveal secrets of the past

Documentary charting the design, service and loss of the Empress of Britain

A reported sighting of 'Bigfoot' by a combat engineer training in the deep forests of north-west Oregon

Reports of odd phenomenon, witnessed over the years, here featuring Air Force medic Dameyon Beaman, who saw windows seemingly open on their own

The secrets and lies of Ramses II, who ruled Egypt from 1279 to 1213BC - one of the longest reigns in pharaonic history. He was a cultural innovator, diplomat and self-promoter

New technology is used to decode some of Egypt's most enduring enigmas. The mysteries behind the ancient Egyptians' obsession with death and the afterlife

Perplexing historical objects include the Jericho Head, a 9,000-year-old clay-covered artifact. Plus, a 1950s machine built to control the weather