An international team of scientists, with participation by researchers at the Instituto de Astrofísica de Canarias (IAC), has discovered a very large, but thin, stream of stars in the Coma cluster of galaxies. This is the largest stream of stars detected until now, and the first to be found in a cluster of galaxies. This finding, which is published in the journal Astronomy and Astrophysics, was made using observations taken with the William Herschel Telescope (WHT) at the Roque de los Muchachos Observatory (Garafía, La Palma, Canary Islands). The Coma Cluster is a large cluster of galaxies

Between 27th August and 7th September the Shelios 2023 expedition tool a group of researchers and students at the south of Iceland and Greenland, where they set up two experiments to measure the natural darkness of the arctic night, and from where they broadcast the aurora borealis. Among the apparatus they installed is the autonomous MiNiO ( Meteo Nano Observatory) controller, developed by the Technological Institute for Renewable Energies (ITER), for the Interreg EELabs project, coordinated by the Instituto de Astrofísica de Canarias (IAC). As well as making people aware of the problems of