A team of cosmologists from the Institute of Astrophysics of Andalusia (IAA-CSIC) and the Institute of Astrophysics of the Canary Islands (IAC) has obtained the most accurate census to date of the dark matter halos of the Universe. The work is based on the development of a new model, called GPS+, capable of predicting how many dark matter halos exist at each stage of cosmic history. In the universe, there are enormous invisible structures surrounding galaxies and galaxy clusters. These are dark matter halos, concentrations of matter that do not emit light and cannot be directly observed, but

The Canary Islands Institute of Astrophysics (IAC) is organizing the XXXVI Canary Islands Winter School of Astrophysics , which will be held in San Cristóbal de La Laguna (Tenerife) from November 17 to 22, 2025. Under the title "Key Optical technologies for Astronomy", the school will focus on cutting-edge optical and algorithmic technologies that will define the future of Astrophysics. This edition, led by Professors Jeff Kuhn (University of Hawaii and IAC) and Rafael Rebolo (IAC), will involve approximately 35 advanced Master's students, doctoral candidates, and early-career postdoctoral