Sky History 2 Thursday

The January 2008 mass UFO sightings between Fort Worth, Texas and Houston, with focus on the nearby town of Stephenville, Texas

The 1942 'battle of Los Angeles', which occured three months after the Japanese bombed Pearl Harbor and saw the city thrown into panic

Actor Laurence Fishburne explores Machu Picchu, one of the most puzzling archaeological sites on Earth. It is unclear who built this astonishing complex, and why

Actor Laurence Fishburne explores the enduring mystery surrounding the death of Egypt's iconic ruler, King Tutankhamun

Actor Laurence Fishburne explores the Hindenburg airship disaster of May 1937, when the craft caught fire during landing in New Jersey

Quaint mansion RAF Rudloe Manor in Wiltshire, a suspected epicentre of British research into UFOs since the Second World War