An international team of astronomers, including researchers from the Instituto de Astrofísica de Canarias (IAC), the University of Liège and collaborators in UK, Chile, the USA, and Europe, has discovered a transiting giant planet orbiting the smallest known star to host such a companion — a finding that defies current theories of planet formation. The host star, TOI-6894 , is a red dwarf with only 20% the mass of the Sun , typical of the most common stars in our galaxy. Until now, such low-mass stars were not thought capable of forming or retaining giant planets. But as published today in

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

El IAC colabora por segundo año consecutivo con el festival de música y tendencias de Puerto de la Cruz con actividades gratuitas que permitirán a los asistentes descubrir el Observatorio del Teide y observar el Sol con telescopios especializados. El Instituto de Astrofísica de Canarias (IAC) se suma nuevamente al Phe Festival , que celebra su décimo aniversario los días 5 y 6 de septiembre en Puerto de la Cruz, con un programa de actividades destinadas a acercar la Astronomía y la investigación científica al público general. La iniciativa forma parte de IAC POP, la estrategia de divulgación