Albert Einstein's General Theory of Relativity is possibly the most perfect intellectual achievement in modern physics. Anything that involves gravity, the force that powers everything on the largest, hottest or densest of scales, can be explained by it. From the moment Einstein first proposed the theory in 1915, it was received with enthusiasm yet also with tremendous resistance, and for the following ninety years was the source of a series of feuds, vendettas, ideological battles and persecutions featuring a colourful cast of characters. From Subramayan Chandrasekhar, who was publicly vilified by Arthur Eddington, to Robert Oppenheimer, whose study of the subject was dismissed as 'fantasy', some of its proponents have been shunned, marginalised and passed over for publishing and academic jobs. Yet, others, like Roger Penrose and Stephen Hawking have established themselves as iconic figures of modern thought, using Einstein's theory to unlock the mysteries of the Universe. Something Important is Going to Happen is the first complete popular history of the Theory, a book that strips it to its core, showing how it has informed our understanding of exactly what the universe is made of and how much of it is still undiscovered: from the work of the giant telescopes in the deserts of Chile or in satellites in outer space to our newest ideas about black holes that are currently being realized by the Large Hadron Collider deep under French and Swiss soil. A gripping, colourfully told story which entangles itself with the flashpoints of modern history - from the First World War, through Nazism and Stalin to the Cold War - Pedro Ferreira has written the definitive book on this fascinating and important subject.