Raúl Jiménez (Madrid, 1967) obtained his PhD at the Niels Bohr Institute in 1995, then moved to the Royal Observatory in Edinburgh were he held a PPARC Advanced Fellowship. He then went to the US where he joined the faculty of the Physics & Astronomy departments of Rutgers and the University of Pennsylvania. He joined ICREA in Sept 2007. He was a Radcliffe fellow at Harvard in 2015-2016. Among his main contributions to our understanding of the Universe: the first evidence of dark energy from the ages of high redshift galaxies and globular clusters, the origin of dark galaxies, the first clue of how galaxies are assembled as a function of time, the first determination of the expansion history of the Universe, the role of cosmic explosions in the survival of exolife, the role of symmetries in the universe, a lower bound to the cosmological constant and a new model of the universe based on quantum information theory and gravity.