Sky History2 Experts scrutinise the engineering behind the Egyptians' Sphinx and pyramids. Could this advanced civilisation have received extra-terrestrial help. 2026-08-25 A newly discovered town in Devon turns history on its head and there's a shocking find by the Thames - almost 100 baby skeletons. 2026-08-25 Dr Alice Roberts visits excavations in Orkney and York on the hunt for Viking relics. Finds include an amazing collection of silver and gold. 2026-08-25 Dr Alice Roberts discovers what Britain was like before the Romans as she examines fascinating finds from the Bronze and Iron Ages. 2026-08-25 Dermot Murnaghan examines the tragic case of five-year-old April Jones, who was abducted and killed by 46-year-old Mark Bridger in October 2012. 2026-08-25 A look at cases where people have claimed strange voices urged them to commit horrific deeds. Could they have been obeying the orders of aliens. 2026-08-25 Experts scrutinise prehistoric ruins, asking whether humans could have built these advanced structures alone. Might they have had alien help. 2026-08-25 What lies beneath? David Duchovny takes us into the top-secret government bases and the clandestine operations they were built to conceal. 2026-08-25 Military historian Stephen Bull tests the three most significant weapons of the sea and explores whether the subsonic torpedo could rule the waves in the future. 2026-08-25 Drug dealer Dale Cregan hit the headlines in 2012 when he murdered police officers Nicola Hughes and Fiona Bone. Dermot Murnaghan examines the tragic case. 2026-08-25 A look at cases where people have claimed strange voices urged them to commit horrific deeds. Could they have been obeying the orders of aliens. 2026-08-25 Experts scrutinise prehistoric ruins, asking whether humans could have built these advanced structures alone. Might they have had alien help. 2026-08-25 Sharp Top Mountain B-25 Crash: Garth Barnard investigates World War II air accidents, starting with a B-25 training crash in Virginia that killed five crew. 2026-08-25 Explore the complex case of the death of Wladyslaw Sikorski, the Polish PM whose plane crashed soon after taking off in 1943. 2026-08-25 Australia's Worst Crash: Australia's worst aviation accident happened in 1943 when 40 crew died in a B-17 bomber crash. 2026-08-25 Death in the Moonlight: In 1944, two Wellington bombers collided in mid-air over Northants. Garth Barnard investigates why 13 young trainees perished. 2026-08-25 Death on the Great Plains: Garth Barnard fact-finds to determine the cause of a terrible accident in Nebraska in 1944, when a plane crashed during a violent storm. 2026-08-25 Take a closer look at the working conditions of a miner in Indonesia, visit the Petrifying Well in England and tour a village where the houses are simply holes in the ground. 2026-08-25 Few have ever heard of the top-secret base in the deserts of Utah known as Area 52, but reports of UFOs have convinced people that the US military is keeping secrets. 2026-08-25 Military historian Stephen Bull tests the three most significant weapons of the sea and explores whether the subsonic torpedo could rule the waves in the future. 2026-08-25 An exploration into the dark art of spy-craft reveals the deadliest weapons deployed to gather information and assassinate enemies. 2026-08-25 Venture into the unknown stories of the American frontier and the anonymous Black figures that have inspired countless Hollywood tales, yet have been erased from the silver screen. 2026-08-25 A look at cases where people have claimed strange voices urged them to commit horrific deeds. Could they have been obeying the orders of aliens. 2026-08-25