In 1971, four university students got together to form a band. Since then, that certain band called Queen has released 26 albums and sold over 300 million records worldwide. The popularity of Freddie Mercury, Brian May, Roger Taylor and John Deacon is stronger than ever. Their story is a remarkable one, a narrative that covers early struggles, huge obstacles, success, arguments, breakups, triumph, tragedy and an enduring legacy - all against a backdrop of brilliant music and stunning live performances from every corner of the globe. In this film, for the first time, it is the band that tells their story. Guiding us through an extensive archive full of hitherto unseen footage, the documentary reveals how four strong-minded individuals, all capable of writing massive hit songs, worked together so successfully for four decades. Queen never did anything by halves - meaning their highs were massive, but their lows catastrophic. It is a compelling story told with intelligence, wit, plenty of humour and painful honesty.

Follow the life and career of Portuguese footballer Cristiano Ronaldo, who currently plays for Spanish club Real Madrid and the Portugal national team, through a series of interviews with Ronaldo himself as well as friends and family. Directed by Anthony Wonke and executive-produced by Asif Kapadia, Ronaldo was shot over the course of 14 months with the film-makers gaining access to Ronaldo's private life and inner circle of friends, family and team-mates. The film was shot in Madeira, Lisbon, and Madrid, where he currently resides as a squad member of Real Madrid.

Space colonization is no longer the fodder of science fiction, it is becoming a reality. Examine the efforts underway to establish a human colony on Mars, including how they plan to grow food, recycle wastewater and introduce greenhouse gases to revive the red planet and make it more habitable for humans. Cutting-edge computer graphics are used to bring the universe down to earth to show what life would be like on Mars, and to imagine what kind of life forms might evolve in alien atmospheres.

Scientists have no idea what it is, but Dark Matter and Dark Energy make up 96% of the Universe. Dark Matter is everywhere. It passes through everything we know on earth at billions of particles every second, yet no one has ever gotten a direct detection of this mysterious dark substance. An even more bewildering force is Dark Energy, which is rapidly pushing apart our Universe. Discovered only ten years ago, scientists are struggling to comprehend its unusual characteristics and answer the ultimate question; what is the fate of our Universe? Using cutting-edge computer graphics watch as the universe is brought down to earth.

Hernan Cortes left Cuba in 1519 seeking riches in the island to the west. Instead he discovered, and ultimately destroyed, a hitherto unknown civilization. Join Micheal Wood as he retraces this fateful expedition. Read Spanish eyewitness accounts that describe the conquistadors' awe at the Aztec achievements and the lust for native treasure. Learn the Aztec' side of the story by scrolling trough pictographs that tell of the agonizing fall of the empire.

The series concludes by delving into the world of satirical maps. How did maps take on a new form, not as geographical tools, but as devices for humour, satire or storytelling? Graphic Artist Fred Rose perfectly captured the public mood in 1880 with his General Election maps featuring Gladstone and Disraeli, using the maps to comment upon crucial election issues still familiar to us today. Technology was on the satirist's side with the advent of high-speed printing allowing for larger runs at lower cost. In 1877, when Rose produced his 'Serio Comic Map of Europe at War', maps began to take on a new direction and form, reflecting a changing world. Rose's map exploited these possibilities to the full using a combination of creatures and human figures to represent each European nation. The personification of Russia as a grotesque-looking octopus, extending its tentacles around the surrounding nations, perfectly symbolised the threat the country posed to its neighbours.