Sky History 2 Thursday

Investigating whether hilltop spirits, which some through time have believed to inhabit mountains, could have been extraterrestrials

Experts investigate strange carvings from 8,000 BC and unexplained sightings in the New World, which could suggest there is more to the US's past than written in the history books

Experts seek a lost garden planted in 1592 as part of a three-day party commemorating the defeat of the Spanish Armada, an event attended by Elizabeth I

The conspiracy theories surrounding a UFO sighting in Mexico in 1974. It was reported the object was lost over Coyame, but shortly afterwards a civilian plane crashed nearby

A stroll through Great Sand Dunes National Park and Preserve in southern Colorado, where strange lights, animal mutilations and other bizarre incidents have been spotted

A trip to Great Smoky Mountains National Park, which straddles the border between North Carolina and Tennessee. It is the alleged underground base for a powerful secret society

Investigating whether hilltop spirits, which some through time have believed to inhabit mountains, could have been extraterrestrials

Experts investigate strange carvings from 8,000 BC and unexplained sightings in the New World, which could suggest there is more to the US's past than written in the history books

Raksha Dave and Alex Langlands join a team from Reading University at a site in Silchester, near Reading, as they examine one of the best-preserved Roman sites in Britain

Exploring the facts and myths behind Soviet-era UFO research programmes, which are claimed to have taken place at Russian cosmodrome Kapustin Yar

A police dash cam captures a high speed pursuit and an officer is stunned when the erratic fugitive makes an impossible getaway

Challenged to reflect on hurdles they've overcome, the artists forge pieces that push their skills to the limit

The artists find inspiration in high fashion as they design accessories, including a braided handbag and a pair of socks

Alice Roberts explores Cardiff's Edwardian past, discovering how the coal industry transformed the Rhondda Valley and brought immigrants from across the world to Wales

Re-creating Ramses II's kingdom of statues, towering obelisks and temples, using computer graphics and archaeological research

Kevin embarks on a challenging dive in the Atlantic Ocean to explore a battleship that saved the Northern Navy in the American Civil War

During his time in charge, Himmler made the study of runes - letters of ancient Germanic writing - obligatory for SS officers in the belief they held powers

An outlandish murder plot to kill Irish down-and-out Michael Malloy in order to claim on his life insurance. Each attempt failed as the mark's luck endured

A look at what might happen if humans were to vanish from Earth, assessing the possibility of escaped animals, invasive vines and deadly viruses taking control of the planet

Paranormal activity inside medical buildings. A nurse faces an unearthly apparition, a home is struck by demonic possession, and a woman starts seeing ghosts

Investigating whether hilltop spirits, which some through time have believed to inhabit mountains, could have been extraterrestrials

Experts investigate strange carvings from 8,000 BC and unexplained sightings in the New World, which could suggest there is more to the US's past than written in the history books

How Inca, Mesopotamian, Persian, Greek, Chinese, Egyptian, Roman and Indus civilisations all still exert deep influences on the fields of science and technology

A police dash cam captures a high speed pursuit and an officer is stunned when the erratic fugitive makes an impossible getaway

Challenged to reflect on hurdles they've overcome, the artists forge pieces that push their skills to the limit

The artists find inspiration in high fashion as they design accessories, including a braided handbag and a pair of socks

Alice Roberts explores Cardiff's Edwardian past, discovering how the coal industry transformed the Rhondda Valley and brought immigrants from across the world to Wales

Experts investigate remote ruins, mysterious caves and legendary mountain portals, asking if these alleged stargates have brought ancient aliens to Earth