Sky History2 Mysteries of Scotland: Home to mysterious stone circles, stories of strange beings and reported sightings, Scotland has always been an epicentre of otherworldly phenomena. (S16, ep 8) 2026-07-22 Aliens And Robots: Experts investigate ancient tales and accounts of robots. If these sophisticated machines did exist in bygone days, what might have happened to them? (S8, ep 1) 2026-07-22 Aliens B.C: Experts investigate whether the stories of a time when gods and otherworldly beings inhabited the planet are more than mere mythology. (S8, ep 2) 2026-07-22 NASA's Secret Agenda: Experts investigate whether rocket scientist Wernher von Braun might have found inspiration in technology found at the alleged UFO crash in Roswell. (S8, ep 3) 2026-07-22 Alien Air Force: Since 2017, the Navy has been releasing photos and videos of UFOs. Theorists suggest the images are nearly identical to accounts from centuries ago. (S14, ep 7) 2026-07-22 Alien Evolution: A look at the accounts of modern-day alien abductees. Plus, could the bizarre Paracas skulls discovered by Julio Tello be of extraterrestrial origin? (S8, ep 5) 2026-07-23