An international study led by Almudena Prieto, a researcher at the Instituto de Astrofísica de Canarias (IAC) has found places where new stars are forming, as faint star clusters, around the centre of an evolved galaxy. This is the first time that young populations of stars have been picked out and dated in this type of galaxies dominated by very old stars, which can be called “rejuvenated old galaxies”. The research has combined observations from various telescopes, both ground based and space based, and has used innovative techniques of data analysis. The results are published in the

The Euclid Consortium announces the publication of its first papers, demonstrating the space mission's ability to search for wandering planets, study the dark matter of galaxies and explore the evolution of the Universe. Five new images with unprecedented resolution are also published. Spain plays an important role in the Euclid mission where, in addition to being part of the consortium that has led the mission since its inception, it has also participated in the instrumental development of the project and contributes significantly to its scientific exploitation. The Instituto de Astrofísica

The existence of dark matter is likely one of the most perplexing problems facing the scientific community, and unraveling its nature has become one of the primary goals of modern physics. In simple terms, we do not know what dark matter is made of, despite accounting for 85% of all the matter in the Universe. A study led by the Instituto de Astrofísica de Canarias concludes that dark matter does not behave as described by the dominant paradigm, which states that dark matter particles only interact with each other and with ordinary matter through gravity. The IAC study reveals that dark