LifeEarth's first life may have sprung up in ice Did early life use RNA, not DNA? The idea has been boosted by the creation of an RNA enzyme that copies strands larger than itself – and works best in the cold 51¶¯Âþ
LifeThe secret life of science in the second world war From Churchill's nuclear predictions to Darwin's influence on the Nazis, four books explore the deeper levels of a history that continues to fascinate us CultureLab