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

Ultra-faint dwarf galaxies, among the tiniest and faintest galaxies known, may hold the key to understanding one of the Universe’s biggest mysteries: the true nature of dark matter. A new study reveals that even a single collision between dark matter particles every 10 billion years — roughly the age of the Universe — is enough to explain the dark matter cores observed in these small systems. These galaxies, which contain only a few thousand stars, are dominated by dark matter and have relatively simple evolutionary histories. That makes them ideal cosmic laboratories for testing theories

Researchers from around the world are taking part in the China–Spain Astronomical Collaboration on High-Resolution Spectroscopy 2025, an event organised by the Instituto de Astrofísica de Canarias (IAC) in collaboration with the National Astronomical Observatories of China (NAOC), the Nanjing Institute of Astronomical Optics & Technology (NIAOT), and the Gran Telescopio Canarias (GTC) team. The aim of the conference is to strengthen and consolidate scientific cooperation between China and Spain in the field of high-resolution spectroscopy, one of the key areas for studying stars, galaxies