Ignacio Ferreras is a staff astronomer at the Instituto de Astrofisica de Canarias, in Tenerife, Spain and holds an honorary professor position at the Physics and Astronomy department, UCL. He was academic staff at the Mullard Space Science Laboratory, UCL for eleven years. After obtaining university degrees in theoretical physics in Valladolid, Spain, and Cornell University, USA, he embarked on a career in astrophysics with a PhD in Cantabria, Spain, followed by various research and academic appointments at Oxford, ETH Zürich, UCL, and King’s College London. He was a 'La Caixa' fellow and an individual Marie Curie fellow.