The discovery, made in collaboration between the IAC Solar System Group and Light Bridges, reveals the rotation period of comet 3I/ATLAS The Two-metre Twin Telescope (TTT) has made a pioneering discovery in astronomy: the first detection of a jet of gas and dust and its periodic modulation in an interstellar comet, 3I/ATLAS. The study, published in the journal Astronomy & Astrophysics, provides the first evidence of localised activity from an interstellar nucleus, offering unique insight into the nature of a celestial body that formed outside our Solar System. An extraordinarily normal

The Instituto de Astrofísica de Canarias (IAC) welcomed the visit of Professor Didier Queloz, Nobel Laureate in Physics and co-discoverer of the first exoplanet orbiting a Sun-like star. Professor Queloz's stay at the IAC has focused on instrumental development and technological collaboration. As part of his agenda, he also gave a lecture entitled ‘Exoplanets: the next frontier’ in the IAC Lecture Hall. The researcher visited the IAC to supervise the installation of a new high-stability spectrograph on the Isaac Newton Telescope (INT) at the Roque de los Muchachos Observatory on La Palma

The Solar System research group at the Instituto de Astrofísica de Canarias (IAC) is participating in the international programme to keep a closet track of asteroid 2024 YR4. The aim is to determine its orbit with the highest possible precision before it stops being observable by ground based and satellite telescopes in April, and so improving our value of the probability that it will impact the Earth in 2032. In this context several telescopes of the Canary Observatories of the IAC are playing an outstanding role in this observing campaign: The Gran Telescopio Canarias (GTC) at the Roque de