Atmosphere. When the Earth first formed from clouds of dust and gas, it was devoid of an atmosphere. But as the young planet is pummelled by asteroids, a period of extraordinary upheaval begins. 4/5. This revealing biography of Earth explores the planet's most epic moments. What had happened to our world before humankind? As the geographical and fossile records show; massive bombardments from space, extreme changes in climate and the collision of whole continents.

Human. How dramatic twists in Earth's story enabled humans to go from being part of nature to controlling it, and what can be learnt from this tale before it's too late. 5/5. This revealing biography of Earth explores the planet's most epic moments. What had happened to our world before humankind? As the geographical and fossile records show; massive bombardments from space, extreme changes in climate and the collision of whole continents.