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 normal

A greedy white dwarf star in our own Milky Way galaxy is devouring its closest celestial companion at a rate never seen before, according to an international study involving the Instituto de Astrofisica de Canarias (IAC) and the University of La Laguna (ULL). The research, published in the journal Monthly Notices of the Royal Astronomical Society , found the double star, named V Sagittae, is burning unusually bright as the super-dense white dwarf is gorging on its larger twin in a feeding frenzy. Experts think the stars are locked in an "extraterrestrial tango" as they orbit each other every

El Instituto de Astrofísica de Canarias (IAC) se suma a la conmemoración del Día Internacional de las Mujeres y las Niñas en la Ciencia con un amplio programa de actividades orientadas a visibilizar el papel de las mujeres en la astronomía y fomentar el interés por la ciencia y la tecnología entre las nuevas generaciones. Entre las acciones más destacadas se encuentra la Editatona 11F, organizada junto a Wikimedia España. La iniciativa se articula en dos jornadas complementarias: un wikitaller práctico de introducción a la edición en Wikipedia, en el que las personas participantes aprenden