Sky History 2 HD Thursday

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

With more than five decades of investigations, it is believed that the Mutual UFO Network's extensive database could contain proof of extraterrestrial visitation

Alice Roberts explores London's Restoration history, including the founding of the Royal Society and the violent dark side behind Charles II's carefully crafted public image

The assassination of President John F Kennedy in November 1963. A suspect was captured, but investigators and amateur sleuths still entertain alternative theories

How ancient cultures perceived extraterrestrial visits to Earth, believing their purpose may have been to not only understand humans but to conquer them

Researchers claim hidden messages can be found within the works of Leonardo da Vinci and other artists that may reveal an extraterrestrial influence

Weapons designed for everyone hand a sizeable advantage. Experts explore three weapons that are easily used: the crossbow, a pike and the Kalashnikov

Examining the German attack on Stalingrad, which turned into one of bloodiest battles in the history of warfare and was a pivotal point in the war

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

Experts find out what the Vinland map - allegedly drawn in the 15th century - reveals about settlements in America prior to Christopher Columbus's arrival

Mikey Kay and Garth Baldwin focus on the Templars moment of reckoning - the fall of the order in 1307

Events that are so destructive, so astounding, they must be directed by the hand of the Almighty

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

Alice Roberts visits Manchester to explore the spirit of protest and revolution that grew out of the experience of Britain's working class during the Industrial Revolution

The Battle of Teutoburg Forest. Rome's defeat not only stopped the growth of its empire, but also created the Latin-Germanic divide that persists in Western Europe to this day

Investigating the origins of Medusa, who, according to mythology, could turn anyone who looked at her into stone, and examining her connection to human corpses in the real world

How ancient cultures perceived extraterrestrial visits to Earth, believing their purpose may have been to not only understand humans but to conquer them

Researchers claim hidden messages can be found within the works of Leonardo da Vinci and other artists that may reveal an extraterrestrial influence

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

The development of the original form of combat - melee. Over time, short-range instruments of battle have evolved, from the short sword to Exoskeletons

The actor continues his quest to find answers to the unexplainable, this week turning his attention to the apocalypse

The team uses high-tech sidescan sonar and deep sea magnetometers to search for evidence after learning of an encounter with an underwater phenomenon