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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 physicalAdvertised on -
An international scientific team, involving the University of La Laguna (ULL) and the Instituto de Astrofísica de Canarias (IAC), has identified the cause of an unusually long dimming of a distant star . The phenomenon is explained by the passage of a substellar object with a giant ring system, similar to a ‘cosmic saucer’, in front of the host star. The star, named ASASSN-24fw, is located in the Monoceros constellation at about 3,000 light-years away from Earth. The star faded steadily for more than nine months between late 2024 and mid-2025 to about 97% dark before returning to its normalAdvertised on -
Astronomers at the Instituto de Astrofísica de Canarias (IAC), using the 2-meter robotic Two-meter Twin Telescope (TTT) at the Teide Observatory, have obtained the deepest optical images ever taken of Malin 2, one of the largest and faintest spiral galaxies in the Universe. These ultra-deep observations have revealed previously unseen structures, including several diffuse stellar emissions and a striking, elongated spiral-like feature, hinting at past interactions with other galaxies. The team has also identified a potential ultra-diffuse dwarf galaxy (UDG) about 400,000 light-years fromAdvertised on