Doscientos cincuenta científicos y representantes de destacadas instituciones de investigación de todo el mundo se reúnen este 15 de octubre para visitar las instalaciones de los cuatro Large-Sized Telescopes (LST, por sus siglas en inglés) del Cherenkov Telescope Array Observatory (CTAO, por sus siglas en inglés), en el Observatorio del Roque de los Muchachos del Instituto de Astrofísica de Canarias (IAC), en La Palma, con motivo de la puesta en marcha de este nuevo conjunto de telescopios. El director del Instituto de Astrofísica de Canarias (IAC), Valentín Martínez Pillet, destaca que “la

Clues to the first stars may be hiding much closer to home than expected. An international team led by the Instituto de Astrofísica de Canarias (IAC) has detected potential chemical traces of the very first stars in the Universe within a neighboring galaxy. The setting for this discovery is NGC 1277, a well-known "relic" galaxy. While normal galaxies grow and transform by merging with others throughout their history, this compact system formed most of its stars very quickly in the early Universe and became frozen in time. Acting as a cosmic time capsule, this galaxy is perfect for

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