Sky History2 The Quest for the Holy Grail: As the Third Reich rises to power, Himmler fixates on the Holy Grail as his and the Nazis' desperation to capture this ancient relic intensifies. 2026-08-05 From radioactive energy drinks to the appalling additives in your milk and bread, we uncover the incredible things people once ate without a second thought. 2026-08-05 As expansive military campaigns and raids by Dacian tribes begin to test the Roman Empire's finances, pressure builds on Emperor Domitian. 2026-08-05 The Legacy of J Allen Hynek: Was Dr Hynek right when he ultimately concluded that there is a non-human intelligence on Earth. 2026-08-05 Throughout the ancient world, there are depictions of mysterious figures that appear to be half-human and half-bird. 2026-08-05 Series investigating compelling UFO and alien cases by opening previously off-limits secret files. Does the mysterious Blue Planet Project hold the answers. 2026-08-06 Specialists in the field of the extraterrestrial examine new evidence that suggests there was extraterrestrial intervention on Earth in the distant past. 2026-08-06 Ancient Astronaut theorists suggest that aliens may have colonised an ice-free Antarctica, before a global event plunged it into the Ice Age. 2026-08-06 Through history, mankind has credited its existence to otherworldly beings. Could this be true? Can any proof be found in these early beliefs. 2026-08-06 A look at the murder of 18-year-old Sally Anne Bowman, who was stabbed in Croydon in 2005. With interviews with her family and detectives who solved the case. 2026-08-06 People claim they have been abducted by aliens. A number of researchers have dedicated their lives to uncovering what is behind this disturbing phenomenon. 2026-08-06 Exploring how some archaeologists claim to have found skeletons of extraordinary size. Is it possible the giants actually existed. 2026-08-06 From Las Vegas to Dubai's Burj Khalifa, as sand, salt and sun dismantle cities, the wastelands quietly take back the ground borrowed. 2026-08-06 The F-16 and MiG-29, born rivals of the skies, embody opposing design ideals: US tech-driven agility versus Soviet rugged aerodynamics. 2026-08-06 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. 2026-08-06 People claim they have been abducted by aliens. A number of researchers have dedicated their lives to uncovering what is behind this disturbing phenomenon. 2026-08-06 Exploring how some archaeologists claim to have found skeletons of extraordinary size. Is it possible the giants actually existed. 2026-08-06 Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases. 2026-08-06 Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases. 2026-08-06 Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases. 2026-08-06 Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases. 2026-08-06 Thousands of UFO sightings and abductions are reported every year. This series examines these accounts and casts new light on historic cases. 2026-08-06 Discover familiar stone monoliths in Colombia, explore a lost city in Sierra Nevada and unravel ancient ruins in Greece and Malta. 2026-08-06 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. 2026-08-06 Himmler's belief in the theory that the Himalayas were home to the Nazis' Aryan ancestors leads to an SS mission to the mountains. 2026-08-06 Atacama Alien and Chimu Child Sacrifice: Examine a tiny skeleton in Chile that set off a firestorm of alien speculation, then explore a forgotten Silk Road settlement. 2026-08-06 Million Mummy Necropolis & the Enigmatic Horseshoe: Join experts as they uncover global stories and answer extraordinary questions about secrets which were once concealed. 2026-08-06 People claim they have been abducted by aliens. A number of researchers have dedicated their lives to uncovering what is behind this disturbing phenomenon. 2026-08-06 Exploring how some archaeologists claim to have found skeletons of extraordinary size. Is it possible the giants actually existed. 2026-08-06 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. 2026-08-07