Sky History2 Aliens And The Red Planet: Experts question what probes on Mars may have found over the past 40 years. Could NASA be hiding proof of life on the Red Planet from the public? (S6, ep 8) 2026-04-01 Mars: The New Frontier: With science closer than ever to proving that life once lived on Mars, is there a chance that something still exists there? (S4, ep 17) 2026-04-01 Alien Communications: With light from distant stars taking millions of years to reach us, how long might it take for alien life to answer any communication sent into space? (S4, ep 18) 2026-04-01 Gloucestershire: Andy receives military training at a Civil War re-enactment, before embarking on a ghostly hunt and meeting the man who captured leopard DNA from a sheep kill. (S1, ep 7) 2026-04-01 West: Alice Roberts and Matt Williams visit sites in the west of Britain, including one uncovering the rituals of Stonehenge. (S4, ep 1) 2026-04-01 Experts investigate whether centuries-old paintings of aliens and UFOs are artistic renderings of real sightings, a coded message for humankind, or just a coincidence. (S1, ep 21) 2026-04-01 Experts investigate if a series of house fires across the UK are linked to an allegedly cursed portrait. (S1, ep 22) 2026-04-01 Sea Lions, Voynich Manuscript, Cocaine Mummies: A look at a mysterious medieval manuscript and Egyptian mummies containing cocaine from Peru. (S1, ep 3) 2026-04-02 Satellites reveal a series of strange pits in central China. What are they and what is their connection to some of the most pivotal events in the country's history? (S6, ep 16) 2026-04-02 D-Day In The Pacific: While the Allies storm France, American forces hit the Marianas Islands and the Enterprise supports one of the most deadly battles of the Pacific War. (S1, ep 8) 2026-04-02 Me-109: The Luftwaffe's Frontline Fighter: The astonishing story of the 109 and its modified variants, best known for its role in the Battle of Britain. (3 of 6) 2026-04-02 The Donner Party's Lost Legacy: Artifacts like glass shards and a writing slate from the tragic Donner Party of 1846 have been recently uncovered in the Sierra Nevada. (S4, ep 10) 2026-04-02 Constantine the Great: A new emperor with a huge vision and undeniable power slowly gains control of the entire Roman empire following the end of the civil wars. (S1, ep 10) 2026-04-02 Aliens And Lost Worlds: Experts search for proof of alien visitors in the ruins of lost civilisations. Could Mayan carvings reveal a city once ruled by otherworldly beings? (S3, ep 8) 2026-04-02 Aliens And The Red Planet: Experts question what probes on Mars may have found over the past 40 years. Could NASA be hiding proof of life on the Red Planet from the public? (S6, ep 8) 2026-04-02 Mars: The New Frontier: With science closer than ever to proving that life once lived on Mars, is there a chance that something still exists there? (S4, ep 17) 2026-04-02 Alien Communications: With light from distant stars taking millions of years to reach us, how long might it take for alien life to answer any communication sent into space? (S4, ep 18) 2026-04-02 Gloucestershire: Andy receives military training at a Civil War re-enactment, before embarking on a ghostly hunt and meeting the man who captured leopard DNA from a sheep kill. (S1, ep 7) 2026-04-02 West: Alice Roberts and Matt Williams visit sites in the west of Britain, including one uncovering the rituals of Stonehenge. (S4, ep 1) 2026-04-02 Experts investigate whether centuries-old paintings of aliens and UFOs are artistic renderings of real sightings, a coded message for humankind, or just a coincidence. (S1, ep 21) 2026-04-02 Experts investigate if a series of house fires across the UK are linked to an allegedly cursed portrait. (S1, ep 22) 2026-04-02 Scout's Honour: Mike kicks off his fifth year in business with the restoration of a rare 1971 International Scout II, before teaming up with his brothers for a family task. (S5, ep 1) 2026-04-02 'Death shall come on swift wings to him who disturbs the peace of the King,' so the inscription goes. Is there truly a curse that haunts the original discoverers of Tutankhamun? (S1, ep 23) 2026-04-02 A strange creature was reportedly seen in a wooded area of Massachusetts by different people, all giving similar descriptions. Coincidence, collusion, or a genuine mystery? (S1, ep 24) 2026-04-02 Dolphin Saviours, Grim Reapers, Hysterical Strength: A look at dolphin rescues, death-smelling pets and a skinny teen with unbelievable strength. (S1, ep 4) 2026-04-02 Eyes in the sky uncover something disturbing in Alaska - a settlement large enough to house thousands of people, wiped out by artillery and bombs. What happened here? (S6, ep 17) 2026-04-02 Battle Of The Leyte Gulf: Follow the events as the USS Enterprise engages in one of the largest sea battles of the war. (S1, ep 9) 2026-04-02 Boeing B-29: Superfortress: The story of the prolonged development and the initially troubled operational history of the Boeing B29 Superfortress. (4 of 6) 2026-04-02 Aliens And Deadly Weapons: From gunpowder to missiles, were these lethal weapons the product of human innovation or created with help from another, otherworldly source? (S3, ep 9) 2026-04-02 The Shamans: Throughout history, spiritual leaders known as shamans have healed, protected and advised. Could they really be in contact with extraterrestrial realms? (S6, ep 9) 2026-04-02 Artificial Alien Intelligence: Is biological life merely a stepping stone for a universe dominated by alien artificial intelligence? (S4, ep 19) 2026-04-02 First Contact: As humanity continues to search for alien life, experts give their analysis on how close we are to First Contact. (S4, ep 20) 2026-04-02 Suffolk: Andy makes a startling discovery at the site of the Rendlesham UFO incident, before sending psychic Simi to investigate one of Britain's most haunted inns. (S1, ep 8) 2026-04-02 East: Alice Roberts and Matt Williams present more outstanding archaeology. The team unearths a mass grave and search the Thames for clues to a 17th century tragedy. (S4, ep 2) 2026-04-02 'Death shall come on swift wings to him who disturbs the peace of the King,' so the inscription goes. Is there truly a curse that haunts the original discoverers of Tutankhamun? (S1, ep 23) 2026-04-02 A strange creature was reportedly seen in a wooded area of Massachusetts by different people, all giving similar descriptions. Coincidence, collusion, or a genuine mystery? (S1, ep 24) 2026-04-02 Dolphin Saviours, Grim Reapers, Hysterical Strength: A look at dolphin rescues, death-smelling pets and a skinny teen with unbelievable strength. (S1, ep 4) 2026-04-03