An international team composed of Drs. Sylvain G. Korzennik, from the Center for Astrophysics | Harvard & Smithsonian , and Antonio Eff-Darwich Peña, from the University of La Laguna and the Instituto de Astrofísica de Canarias, has published a pioneering study aimed at improving our understanding of the Sun’s internal structure. The work, published in The Astrophysical Journal , stands out for its use of exceptionally long helioseismic time series, exceeding twenty-five years of continuous observations, to analyze the deepest layers of the Sun. Helioseismology is the study of patterns of

From today until 5 December 2025, the Instituto de Astrofísica de Canarias (IAC) is hosting the SO/PHI Science and Team Meetings, an international gathering focused on the scientific and technical advances of the Polarimetric and Helioseismic Imager (PHI) instrument aboard ESA's Solar Orbiter (SO) space mission. The development of PHI was co-led by the Spanish Space Solar Physics Consortium (S3PC), which also currently coordinates its scientific operation and exploitation. The IAC is part of this network. PHI is a high-precision solar observation instrument equipped with two telescopes—one

During October, the Adaptive Optics System team at the Gran Telescopio Canarias (GTCAO) of the Instituto de Astrofísica de Canarias (IAC), in collaboration with the technical team at the Gran Telescopio Canarias (GTC or Grantecan), successfully completed the integration of the GRANCAIN instrument into the world's largest optical-infrared telescope. The installation was carried out at the GTCAO outlet on the telescope's Nasmyth B platform, a key step in initiating performance testing of the new adaptive optics system. This is the first scientific instrument to operate using the GTC's adaptive