Sky History 2 Wednesday

Investigations into the possibility that extraterrestrials with a superior knowledge of science and engineering landed on Earth thousands of years ago

Theorists speculate about the existence of black holes on Earth, which may explain strange disappearances and other inexplicable phenomena

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

In 1943, Germany fell at Stalingrad, its first major defeat. In the Pacific, Japan lost momentum after the US won at Guadalcanal

How an encrypted German telegram offered the key to saving Britain in its darkest hour. A team of geniuses set about decoding the message to help win the Great War

Investigations into the possibility that extraterrestrials with a superior knowledge of science and engineering landed on Earth thousands of years ago

Theorists speculate about the existence of black holes on Earth, which may explain strange disappearances and other inexplicable phenomena

Experts scrutinise the paintings, journals and technical drawings of Leonardo Da Vinci to establish whether they hide evidence of extra-terrestrial beings

Investigations into the possibility that sightings of alien beings or UFOs may actually be evidence of time travellers from the future

Theorists investigate a depiction of a stegosaurus found at Angkor Wat in Cambodia, comtemplating whether it suggest that alien species killed off the dinosaurs

A team of scientists examines the remains of the Puma Punku temple in Bolivia in a bid to determine whether it could have been designed and constructed by extraterrestrials

A team of experts looks into the Orion constellation to investigate whether this could have been an entry point for aliens visiting Earth

An examination of glowing lights seen above Marfa, Texas, assessing whether they are a natural or supernatural phenomenon. Plus, a goat spotted walking like a human

In 1943, Germany fell at Stalingrad, its first major defeat. In the Pacific, Japan lost momentum after the US won at Guadalcanal

How an encrypted German telegram offered the key to saving Britain in its darkest hour. A team of geniuses set about decoding the message to help win the Great War

The groundbreaking discoveries, inventions and inventors throughout history that have changed the way people live their lives

Modern science helps uncover the secrets of health and wealth, from Queen Hatshepsut's death to a case of breast cancer

Investigations into the possibility that extraterrestrials with a superior knowledge of science and engineering landed on Earth thousands of years ago

Theorists speculate about the existence of black holes on Earth, which may explain strange disappearances and other inexplicable phenomena

The team compares the strange encounters of two men, one from Ohio and the other from Virginia, to see if there is evidence that they have had contact with extraterrestrials

The River Hunters head to the River Lochy in search for evidence of the clashing Scottish clans embroiled in the 17th-century civil war

Alice Roberts explores treasures in the west of Britain, including the remains of Snodhill Castle in Herefordshire and the oldest house ever found in Cardiff

Archaeologists in Russia find several mass graves, a Second World War plane sits on a Canadian mountain and cosmic rays in Antarctica have experts stumped

The guys wager on finding the greatest kitsch. They go on a feeding frenzy in a private collector's barn filled with authentic local furniture priced to sell

Researchers study giant ancient drawings found etched into the desert floor, which may be a part of an ancient alien code