Sky History 2 HD Sunday

Giorgio Tsoukalos examines stories of powerful shining beings who came down from the sky, contemplating whether these tales have been inspired by ancient alien visitation

Giorgio Tsoukalos examines a curious passage in ancient test The Zohar, which describes seven Earths

Part one of two. How the Channel Island of Alderney became a pre-occupation of Nazi leader Adolf Hitler and was transformed into one of the most heavily fortified places on Earth

Part two of two. On the orders of Hitler, more than 5,000 slave labourers were shipped to Alderney to build a series of fortifications designed to protect the island from attack

Documentary series exploring the role of trains in the major conflicts of the past 150 years. This instalment considers the First World War of 1914 to 1918

Examining the execution of German spies captured in the two world wars, how suffragette Leonora Cohen highlighted her cause, and cameras follow a new recruit for the Beefeaters

Cameras follow the structure's Raven Master, and General Nicholas Houghton, former Chief of Defence staff and current Constable of the Tower

Professor Alice Roberts is in Glasgow to investigate the impact of steam power on major towns in the 18th and 19th centuries, and learns about the arrival of migrant workers

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

Experts open previously off-limits secret files in a bid to answer some of the most mysterious questions surrounding UFOs and extraterrestrial life

From the trench to the home-front hospital, a medical historian retraces the train journey made by wounded soldiers during the Second World War

The astonishing accounts of four railway journeys that changed history, including the perilous expedition that made a young Winston Churchill world famous

Two-part documentary exploring the Anglo-Norman invasion of Ireland, beginning in the turmoil of 12th-century Ireland, where provincial kings compete for supremacy

Part two of two. In 1171, Henry II arrived to take control of Ireland, and granted land there to settlers from Britain. Cutting-edge science reveals their fascinating lives

The Battle of the Catalaunian Plains, fought in 451, between the Huns under Attila and a mixed Roman and Visigoth force under Aetius and Theodoric I

Elite Greek army the Sacred Band, which was formed by the city of Thebes in 379BCE to defend itself from Sparta

Giorgio Tsoukalos examines stories of powerful shining beings who came down from the sky, contemplating whether these tales have been inspired by ancient alien visitation

Giorgio Tsoukalos examines a curious passage in ancient test The Zohar, which describes seven Earths

Perplexing historical objects include the Jericho Head, a 9,000-year-old clay-covered artifact. Plus, a 1950s machine built to control the weather

This latest collection of objects comprises an intriguing 35,000-year-old box, a steam-powered gun and a monument that may have been an Aztec throne

Recounting how on the outskirts of Bouerat Harbor in Libya, a small group of British special forces made plans to destroy a crucial German fuel depot

The events of June 1941, when cameras rolled as Nazi Germany launched an all-out assault on the Soviet Union

How rookie platoon leader Charles Scheffel suffered his first losses as he battled Rommel's Afrika Korps in Tunisia

The actor investigates evidence from recently declassified files to shine a light on what's really going on deep in the shadows