TV Guide Sky History 2 Monday

Craig and space journalist Sarah Cruddas scrutinise an astonishing case that took place in November 2018 off the west coast of Ireland, in which multiple pilots saw bizarre lights through their cockpit windows. Ted Roe, Director of Research at the National Aviation Reporting Centre shares extraordinary insights into the sighting, while an ex-Nato air traffic controller - under the cover of anonymity - acts as a whistle-blower, spilling more secrets of the sky and the shocking lengths that governments are prepared to go to hide the truth

As Hitler rose to power, Heinrich Himmler and the SS were convinced the legendary continent Atlantis existed. From an ancient city to rock carvings in Sweden, the Ahnenerbe - Nazi Germany's secret team of elite scholars and archaeologists - searched for its whereabouts

Impressive war machines from the Second World War to the current day, combining expert analysis and modern combat simulators to reveal their enduring legacy. This episode focuses on the Spitfire aircraft, which symbolised British hope and resistance and the Tiger tank, which embodied German power

Millions of years ago Mars, aka the Red Planet, had a lot in common with Earth, but it's now a desert wasteland. Do the doorways recently discovered on the planet's surface lead to an existential lesson for mankind?

Andy McGrath heads to the home of palaeontology on Dorset's Jurassic Coast and braves the collapsing cliffs of Lyme Regis to bring back one of its many fossils. While in the county, he investigates UFO-infested hillforts, haunted castles, chalk giants and shares a song with the fairies at the Singing Barrows of Weymouth

Alice Roberts visits archaeological digs around the UK, starting with the west of Britain. She discovers lost First World War training trenches on Salisbury Plain, visits Britain's first 'double henge' discovered just down the road from Stonehenge, dives into the English Channel to explore an 18th-century East India company ship packed with silver, and unearths luxury foreign goods discovered at Tintagel, the legendary childhood home of King Arthur

Cameras capture the world from fresh and exhilarating perspectives. Using drones and satellite imagery, this instalment discovers a vanished Neolithic structure in an Irish field, an oasis in a Chinese desert and buried treasure in the UK

Millions of years ago Mars, aka the Red Planet, had a lot in common with Earth, but it's now a desert wasteland. Do the doorways recently discovered on the planet's surface lead to an existential lesson for mankind?

Andy McGrath heads to the home of palaeontology on Dorset's Jurassic Coast and braves the collapsing cliffs of Lyme Regis to bring back one of its many fossils. While in the county, he investigates UFO-infested hillforts, haunted castles, chalk giants and shares a song with the fairies at the Singing Barrows of Weymouth

Alice Roberts visits archaeological digs around the UK, starting with the west of Britain. She discovers lost First World War training trenches on Salisbury Plain, visits Britain's first 'double henge' discovered just down the road from Stonehenge, dives into the English Channel to explore an 18th-century East India company ship packed with silver, and unearths luxury foreign goods discovered at Tintagel, the legendary childhood home of King Arthur