A new study published in Astronomy & Astrophysics unveils a powerful way to determine the size of dark matter haloes—the massive, invisible structures that host galaxies—by simply measuring how large galaxies appear in deep astronomical images. Researchers Ignacio Trujillo and Claudio Dalla Vecchia, from the Instituto de Astrofísica de Canarias (IAC) and the Universidad de La Laguna (ULL), demonstrate that galaxy size can serve as a precise proxy for halo size, offering measurements up to six times more accurate than previous methods. Using the cutting-edge EAGLE cosmological simulations

El Instituto de Astrofísica de Canarias (IAC) se suma a la conmemoración del Día Internacional de las Mujeres y las Niñas en la Ciencia con un amplio programa de actividades orientadas a visibilizar el papel de las mujeres en la astronomía y fomentar el interés por la ciencia y la tecnología entre las nuevas generaciones. Entre las acciones más destacadas se encuentra la Editatona 11F, organizada junto a Wikimedia España. La iniciativa se articula en dos jornadas complementarias: un wikitaller práctico de introducción a la edición en Wikipedia, en el que las personas participantes aprenden

The international consortium Sloan Digital Sky Survey-V (SDSS-V) has appointed Dr Sebastián Francisco Sánchez, researcher at the Institute of Astronomy of the National Autonomous University of Mexico and senior scientist on leave from the Instituto de Astrofísica de Canarias (IAC), as director of the Local Volume Mapper (LVM) project, one of the three surveys that make up the SDSS-V. This appointment recognises Dr Sánchez's academic excellence and consolidates the collaboration with the IAC, with which the researcher has maintained a close scientific relationship for many years. Dr Sánchez