ESA’s Euclid space mission reveals its first full-colour images of the cosmos. Never before has a telescope been able to create such razor-sharp astronomical images across such a large patch of the sky, and looking so far into the distant Universe. These images illustrate the telescope's potential to create the largest and most accurate 3D map of the Universe to date. The Instituto de Astrofísica de Canarias (IAC) has led one of the first five Euclid Early Release Objects (ERO) programmes. 95% of our cosmos appears to be made of these mysterious ‘dark’ entities But we don’t understand what

An international scientific team, including the Instituto de Astrofísica de Canarias (IAC), has detected distortions in the brightness of a galaxy's disc that could be explained by the gravitational effect of an unknown neighbouring galaxy. Named GTC-1, the satellite galaxy was discovered using ultra-deep images obtained with the OSIRIS camera of the Gran Telescopio Canarias, located at the Roque de los Muchachos Observatory in La Palma. The finding provides a possible explanation for a puzzle about way the light fades out at the edges of galaxy disks, a mystery that has bothered the

The presidents of the High Courts of Justice (TSJ) of Spain have met in La Palma for their 18th annual meeting. On 27 June 2023, the presiding judges of the Spanish High Courts of Justice (TSJ) visited the Roque de los Muchachos Observatory to see its facilities and telescopes. The Director of the Instituto de Astrofísica de Canarias, Rafael Rebolo, received the group of judges accompanied by the Observatory administrator, Juan Carlos Pérez Arencibia, and the Mayor of Garafía, José Angel Sánchez, who was also joined by three councillors from his Corporation. The tour began at the Roque de