Professor Brian Cox takes a look through nearly 50 years of BBC archive at the story of mans relationship with the Moon. From the BBCs space fanatic James Burke testing out the latest NASA equipment to 1960s interviews about the bacon-flavoured crystals that astronauts can survive on in space, to the iconic images of mans first steps on the Moon and the dramatic story of Apollo 13, Horizon and the BBC have covered it all.

In 1542, the Spanish Conquistador, Francisco de Orellana ventured along the Rio Negro, one of the Amazon Basins great rivers. Hunting a hidden city of gold, his expedition found a network of farms, villages and even huge walled cities. At least that is what he told an eager audience on his return to Spain. The prospect of gold drew others to explore the region, but none could find the people of whom the first Conquistadors had spoken. The missionaries who followed a century later reported finding just isolated tribes of hunter-gatherers. Orellanas story seemed to be no more than a fanciful myth

Clouds of alien life forms are sweeping through outer space and infecting planets with life – it may not be as far-fetched as it sounds. The idea that life on Earth came from another planet has been around as a modern scientific theory since the 1960s when it was proposed by Fred Hoyle and Chandra Wickramasinghe. At the time they were ridiculed for their idea – known as panspermia. But now, with growing evidence, its back in vogue and even being studied by NASA.

Out in deepest space lurks a force of almost unimaginable power. Explosions of extraordinary violence, are blasting through the Universe every day. If one ever struck our Solar System it would destroy our Sun and all the planets. For years no one could work out what was causing these awesome explosions. Now scientists think they have identified the culprit. Its the most extreme object ever found in the Universe; they have christened it a hypernova.