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Different cultures have used mantras and chanting for thousands of years - could these in fact be a method of communing with extraterrestrial forces.

Did a top secret group of officials, dubbed the Majestic Twelve, really create a space programme that has already established bases on the moon.

Lauro is on the brink of completing the gruelling Iditarod as he races along the frozen Bering Sea coast.

Lauro sets off on a solo adventure with his loyal dog team as the harsh and unforgiving landscape of the Arctic presents several challenges.

Fresh evidence. Bigger risks. The team chase a hidden chamber on oak island, pushing deeper into unstable ground in a relentless hunt for treasure.

Recount the birth of Mickey Mouse, from being created as a pencil sketch to rocketing into untouchable, lasting fame.

Facing soaring costs, mounting criticism and a tight deadline, Walt Disney creates the first full-length animated feature film.

Walt Disney overcomes obstacles to create the first theme park, where instead of thrill rides, the visitor enjoys an immersive journey into a story.

Amidst financial troubles, Disney figure out how to bring their beloved characters off the screen and into the hands of millions through marketing.

Against all odds, Disney turns 27,000 acres of muddy Florida swampland into the world's largest - and most visited - theme park.

For years Disney has pushed the boundaries of art and science through the work of dreamers, designers and builders known as the 'Imagineers'.

Brandi is determined to win a locker, while Rene spots a stack of items that speaks to him. Barry struggles to stay in the game.

Ivy drags Isaiah to Victorville as punishment for getting Cs on his report card, while Kenny wants to furnish his new house.

Brandi is fired up about expanding her brand in San Bernardino, while Rene is positive that everyone is out to get him.

Lisa gets nostalgic as she returns to Moreno Valley, while Kenny welcomes a new granddaughter to the clan and searches for the perfect unit.

In Northumbria, skeletons tell tales of violent death and tenderness, and people curate grave goods in an amazing community project.

Dr Alice Roberts pays tribute to the Bard, visiting Shakespeare's first theatre in London's Shoreditch and sifting through the poet's rubbish.

The stories of the siege of Tobruk and the battle of El Alamein, the result of which saw the first serious defeat of the German army.

This episode remembers some of the thunderous naval battles which took place during the Pacific War.

The decision by Hitler to send his armies east into Russia was probably the most significant of the war.