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

The EU-funded EDUCADO project (Exploring the Deep Universe by Computational Analysis of Data from Observations) at the Instituto de Astrofísica de Canarias (IAC) is organising a two-night astronomical observation school providing hands-on research training for early-stage researchers in astronomy and computer science. The program will convene 15 doctoral candidates from across Europe for an immersive, interdisciplinary learning experience. Attendees will engage in night time astronomical observations utilizing state-of-the-art telescopic instrumentation, guided data analysis workshops, and