The four large sized telescopes of the CTAO on La Palma reach a key milestone in their construction The LST-2 telescope has successfully completed the installation of its camera support structure (CSS), making it the last of the four Large Sized Telescopes ( LST ) to reach this important milestone in its construction at the Roque de los Muchachos Observatory of the Instituto de Astrofísica de Canarias (IAC) on La Palma. This telescope is part of the ambitious CTAO ( Cherenkov Telescope Array Observatory ) project, which will create the world's largest network of telescopes for the detection

The Canary Islands Institute of Astrophysics (IAC) is organizing the XXXVI Canary Islands Winter School of Astrophysics , which will be held in San Cristóbal de La Laguna (Tenerife) from November 17 to 22, 2025. Under the title "Key Optical technologies for Astronomy", the school will focus on cutting-edge optical and algorithmic technologies that will define the future of Astrophysics. This edition, led by Professors Jeff Kuhn (University of Hawaii and IAC) and Rafael Rebolo (IAC), will involve approximately 35 advanced Master's students, doctoral candidates, and early-career postdoctoral

An international team of astronomers, including researchers from the IAC, have performed a unique cosmic test - measuring the mass of an ancient star using two entirely different methods, finding agreement to within just 1.4%. This result marks a milestone in our ability to determine the ages of old stars and use them as living fossils to study the Milky Way’s distant past. The team analysed the red giant in the binary system KIC 10001167 using two independent approaches: firstly, by measuring the brightness and radial velocity variations due to the orbital motion of the binary, and secondly