William Parsons  discerned the spiral structure of the M51 nebula, which the Hubble space telescope has photographed the nebula in detail (above). Photograph: ESA/Hubble

In March and April 1845 William Parsons, 3rd Earl of Rosse, together with his collaborators, made the greatest scientific discovery in the history (...)

Brian May  performs onstage during the MTV Europe Music Awards 2011 live show at the Odyssey Arena  in Belfast. Photograph: Ian Gavan/Getty Images

Long before he became a star, Brian May was a stargazer. As a child he was inspired by Patrick Moore’s The (...)