7:50PM, Friday 31 Mar
Life's Rocky Start
NOVA: Four and a half billion years ago, the young earth was a hellish place—a seething chaos of meteorite impacts, volcanoes belching noxious gases and lightning flashing through a thin, torrid atmosphere. With no protective ozone layer, ultraviolet radiation sterilised Earth’s hot, bleak surface. Then, in a process that has puzzled scientists for decades, the first microbes took hold. How did it happen? In Life’s Rocky Start, dynamic...