In the last episode, Iain discovers the remarkable impact of just one plant: grass. On the savannah of South Africa he sees how grass unleashed a firestorm to fight its greatest enemy, the forests. He shows how cutting your finger on a blade of grass shows us how it transformed life in the oceans. In Senegal, he meets the cleverest chimps in the world. And, in the ruins of the oldest temple on Earth, he tells the extraordinary story of how grass triggered human civilisation.
In the second episode, Professor Iain Stewart discovers how flowers have transformed our planet. He journeys to the remote islands of the South Pacific to track down the earliest flowers. In the deserts of Africa and rainforests of Vietnam, he sees how they brought brilliant colour to the most barren landscapes and sculpted the earth itself. And he learns how they drove the evolution of all animals - kick-starting our human story.
NASA may have just gotten one step closer to the answering the question: are we alone? The Spitzer Telescope has made a groundbreaking discovery of exoplanets that could be similar to our own. And as Kepler also continues its search, our understanding of the universe continues to be redefined.
Mars is filled with mysteries, Volcanoes 77 000 feet tall, Huge canyons, 3000 miles across and 6 miles deep, all kinds of interesting features. Awaiting you is some of the greatest scenery in our Solar System, on a world where water once ruled, then vanished into thin air. Where lost microbe empires may still survive underground. We've seen the postcards, and we do wish we were there.
Head beyond the Asteroid Belt for an out of this world experience. Welcome to Jupiter, home of high adrenaline adventure. Plunge into its mysterious depths. When you drop through the clouds it would get darker and hotter. At the center the temperatures are hotter than the surface of the sun and the pressures are unimaginably high.
