MysteryX HD Sunday

Experts unseal the truth about the potential aliens living and working among humans

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

Claims that a time traveller materialised in a California bathroom, plants can detect human thought and that pagans practice human sacrifice in New Hampshire

A dental receptionist who had an amazing escape and a man with an incredible connection. Plus, the connection between the world's magnetic fields and its cow population

Andy McGrath goes searching for dragons in Somerset and visits the grave of Arthur and Guinevere in Glastonbury Abbey

Andy McGrath receives basic military training at a Civil War re-enactment and embarks upon a hunt in the creepy surroundings of Littledean Jail with a paranormal researcher

Dan Jones explores the history of Carrickfergus Castle in Co Antrim, a stronghold key to understanding the relationship between Britain and Ireland

Dan Jones explores the history of the Welsh capital's landmark, Cardiff Castle, and discovers more about its various incarnations over the centuries

Aerial images reveal a strange dark stain covering a coastal town

Experts uncover a labyrinth that could lead them to the secrets of Imhotep

Recalling reports of silvery objects hovering over Los Angeles in February 1942. In the wake of the attack on Pearl Harbour, the city was immediately placed on high alert

Exploring reports of sinister flying objects that were allegedly seen above secret military bases during the Cold War

The mysterious phone call from an apparently middle-aged woman who predicted the murder of President John F Kennedy in November 1963

A look at the claims of people who are convinced they have seen mysterious religious sightings and apparitions of Jesus Christ

At Mexico City's Templo Mayor, archaeologists uncover a 15th-century tower of 600 skulls, revealing new insights into Aztec sacrifice and ritual

The fate of a British South American Airways flight, which disappeared in a snowstorm on August 2 1947 en route from Buenos Aires to Chile

The German police's attempts to catch a depraved and psychotic killer, who struck fear into women travelling on Berlin's S-Bahn train network during the Second World War

The dark tale of the skeleton of an unknown woman found in a hollowed-out tree in Birmingham woodland, exploring the links between the woman and Nazi spy rings operating in Britain

The fate of a British South American Airways flight, which disappeared in a snowstorm on August 2 1947 en route from Buenos Aires to Chile

Possible alien activity in the Arizona city of Sedona. This programme considers what might be drawing UFOs to this spot

The events of 2017, when astronomers at the Pan-STARRS observatory saw an object they named Oumuamua, the very first observed visitor from interstellar space

Tthe disappearance of Frederick Valentich and his Cessna over the treacherous Bass Strait. His last transmission gave a disturbing account of what the young pilot experienced

Experts unseal the truth about the potential aliens living and working among humans

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

When satellites spot anomalies in the unexplored Amazonian jungle, experts wonder if they've discovered relics of a lost civilisation

How the pyramids of Giza could be a giant map of the stars. Plus, how first responders brought hope to the survivors of Hurricane Katrina