The Telescopio Nazionale Galileo (TNG), at the Roque de los Muchachos Observatory (La Palma), did not miss the opportunity to observe the new interstellar object whose discovery was announced on July 1, 2025. This visitor, named 3I/ATLAS, follows in the footsteps of its predecessors, 1I/‘Oumuamua and 2I/Borisov, discovered in 2017 and 2019. Like them, it was detected on its journey toward the Sun, on a hyperbolic orbit at high speed (about 60 km/s) when it was still 3.3 AU from our star (about 495 million km). Shortly after the announcement of its discovery by the ATLAS telescopes, its cometary nature was confirmed thanks to the coma surrounding its bright nucleus.

A new study from the Stellar Population Astrophysics (SPA) project at the Telescopio Nazionale Galileo (TNG) presents a homogeneous high-resolution spectroscopic analysis of 95 giant stars across 33 open clusters in the Milky Way. Observations were carried out using HARPS-N, the TNG's high-precision spectrograph, enabling the determination of accurate non-local thermodynamic equilibrium (NLTE) atmospheric parameters and elemental abundances.

An Italian research team has discovered a new long-period giant planet orbiting HD 75898 and refined the parameters of a recently announced planet around HD 11506, using data from the HARPS-N spectrograph in combination with astrometric measurements from the Gaia mission.

The previously known planets in these two systems were discovered between 2007 and 2009. Since 2012, the Global Architecture of Planetary Systems (GAPS) team has been monitoring both stars, collecting 122 HARPS-N spectra for HD 75898 and 72 for HD 11506. These data, combined with archival observations from the HIRES spectrograph and Gaia astrometry, allowed the team to investigate the presence of additional long-period companions.