A slow-burn tale of scientific discovery. This is an enthralling exploration of the star on our doorstep, charting the journey from ancient superstition to deep scientific mysteries yet to be resolved. The Sun examines how we have come to understand the features and processes at work in our star, starting with the earliest observations of mysterious sunspots and ending with the rich and complex investigation of the connected Sun-Earth system. It reveals the interconnected sciences involved in finding out more about the Sun and the practical importance of doing so for our modern world. Sun is part of the Illuminates series of short, accessible books that examine amazing aspects of space, brought to you by Royal Observatory Greenwich.