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  • Artist’s impression of the interaction between the star (GJ 436) and the exoplanet (GJ 436 b)
    Press release
    A study reveals the strongest evidence to date of a magnetic field on an exoplanet
    The Instituto de Astrofísica de Canarias (IAC) is taking part in an international study, published in the journal "Science", which provides the first conclusive evidence of a planet’s influence on the behaviour of its star. The results have made it possible to detect and estimate the strength of the magnetic field of the exoplanet GJ 436 b, opening up a new avenue for studying the habitability of planets outside the Solar System. Magnetic fields play a fundamental role in the habitability of planets. On Earth, the magnetic field acts as a shield against the solar wind and contributes to the
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  • Habla con Ellas: Mujeres en Astronomía – Edición 2026
    Press release
    “Habla con Ellas: Mujeres en Astronomía”: ocho ediciones conectando ciencia y educación
    El Instituto de Astrofísica de Canarias (IAC) celebra en 2026 la octava edición consecutiva del proyecto Habla con Ellas: Mujeres en Astronomía, una iniciativa de divulgación científica y educación en astronomía que se desarrolla en el marco del Día Internacional de la Mujer y la Niña en la Ciencia (11 de febrero). Dirigido a la comunidad educativa, el proyecto tiene como objetivo visibilizar el papel de las mujeres en la astronomía y la astrofísica, crear referentes femeninos en ciencia y tecnología e inspirar vocaciones científicas, especialmente entre niñas y jóvenes interesadas en las
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  • Comparison between an observed galaxy (right) and a simulated galaxy (left)
    Research news
    An accurate measure of the size of dark matter haloes using the size of galaxies
    In the standard cosmological model (𝜦CDM), galaxies are merely the visible "tips of the icebergs," residing within massive, invisible cocoons of dark matter known as haloes. While these haloes dictate the evolution and motion of galaxies, measuring their true size and mass has long been one of the most challenging tasks in astrophysics. A new study published in Astronomy & Astrophysics by Claudio Dalla Vecchia and Ignacio Trujillo from the Instituto de Astrofísica de Canarias (IAC) proposes a breakthrough: a physically motivated definition of a galaxy’s edge that acts as a precision "ruler"
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