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
El Instituto de Astrofísica de Canarias (IAC) ha celebrado, este jueves 24 de julio de 2025, el 40 aniversario de la inauguración oficial de su sede central y de sus dos observatorios. Un acto que ha estado centrado en destacar el trabajo de los cientos de personas que han contribuido a convertir el IAC en uno de los centros de excelencia investigadora y técnica más importantes del mundo. En el acto, el director fundador del IAC, Francisco Sánchez, ha tenido un papel fundamental pese a que sus problemas de salud no le hayan permitido participar en el mismo. El lema de este 40 aniversario ha
The smallest galaxies in the cosmos are emerging as one of the greatest challenges for modern astrophysics. A team of researchers from the Universidad de La Laguna and the Instituto de Astrofísica de Canarias (IAC) is studying these tiny systems to understand why they do not always match the predictions of the standard cosmological model. The work is carried out within the framework of the INGENIO project, funded by the Agencia Estatal de Investigación (AEI), which uses advanced cosmological simulations to reconstruct the galactic environment closest to the Milky Way and explore physical
