Sky History 2 HD Friday

The mystery of labour union leader Jimmy Hoffa's disappearance of 1975. Plus, experts investigate whether JF Kennedy's brain might have gone missing

In the world without humans, pythons compete with alligators for control of the Florida Everglades, and Shanghai is sunk by its empty skyscrapers

Documentary exploring electric blue mountain and the gateway to Hell, the railroad of death and the town-swallowing Texan abyss

An examination of the new Cold War, involving the US, Russia, the UK and China, will play out

The Second World War Battle of Leyte Gulf, which saw three days of ingenious strategy and white-knuckle combat between warships, aircraft and kamikazes

The mysteries of the Aztecs, who built one of the world's most powerful and feared empires

How, across the globe, reports of mysterious glowing orbs are on the rise. Their origin and purpose remain unknown, raising questions about potential extraterrestrial contact

Experts examine the possibility that life began on Mars and travelled to Earth, and assess the plans aliens may have in store for the human race if they really do exist

Dan Jones explores the turbulent history of Lancaster Castle, which has witnessed scenes of historical, cultural and political significance throughout the centuries

Hugh Dennis and the team are in Odiham, Hampshire, searching for the house of Sir Frances Walsingham, the head of Elizabeth I's Secret Service

The mystery of labour union leader Jimmy Hoffa's disappearance of 1975. Plus, experts investigate whether JF Kennedy's brain might have gone missing

In the world without humans, pythons compete with alligators for control of the Florida Everglades, and Shanghai is sunk by its empty skyscrapers

Documentary exploring electric blue mountain and the gateway to Hell, the railroad of death and the town-swallowing Texan abyss

An examination of the new Cold War, involving the US, Russia, the UK and China, will play out

The Second World War Battle of Leyte Gulf, which saw three days of ingenious strategy and white-knuckle combat between warships, aircraft and kamikazes

Experts examine the plausibility of the Egyptian prophecy about the impact of a comet causing unimaginable destruction in 2012

Declassified files reveal bizarre military weapons plans, that somehow balance between apocalyptic and absurd

The mysteries of the Aztecs, who built one of the world's most powerful and feared empires

How, across the globe, reports of mysterious glowing orbs are on the rise. Their origin and purpose remain unknown, raising questions about potential extraterrestrial contact

Experts examine the possibility that life began on Mars and travelled to Earth, and assess the plans aliens may have in store for the human race if they really do exist

Dan Jones explores the turbulent history of Lancaster Castle, which has witnessed scenes of historical, cultural and political significance throughout the centuries

Hugh Dennis and the team are in Odiham, Hampshire, searching for the house of Sir Frances Walsingham, the head of Elizabeth I's Secret Service

The case of UFO chaser Captain Mantell, and what he may have seen before he was killed. Plus, experts investigate a close encounter in Texas and a mysterious crash at Shag Harbour

The Sphinx, in Egypt, is the most monumental ancient sculpture in the world. Half-man, half-lion, this monument still arouses the curiosity of the whole world