RAMAN PRINJA is Professor of Astrophysics at University College London, where he specialises in massive stars, star formation and the evolution of galaxies. He is a multiple winner of UCL faculty and department teaching awards. Raman is keen to bring the subject of astronomy to a wider audience and has written several successful books on the subject, including Night Sky Watcher which was shortlisted for the Royal Society Young People's Book Prize in 2015.