The Instituto de Astrofísica de Canarias (IAC) is demonstrating the quality and international relevance of the Canary Islands Observatories at the 245th session of the American Astronomical Society (AAS) meeting being held this week in Maryland (USA). This meeting, led by the American astrophysics community, brings together the world's most important research centres in this field to share lines of work and proposals for the present and the future. The IAC delegation in Maryland is headed by the director of the centre, Valentín Martínez Pillet, who is part of the panel of speakers with a

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 Instituto de Astrofísica de Canarias (IAC) is joining the Earth Hour, a global movement that, once a year, reminds us that nature is the planet’s life support and highlights the environmental emergency that requires collective action.