In the tradition of spectrographs - see also the ESPRESSO project - the Observatory is heavily involved in the high resolution ANDES spectrograph which will be installed on the ESO-ELT (Extremely Large Telescope) an extremely large optical telescope being built on Cerro Armazones in Chile (Antofagasta Region) with a primary mirror diameter of 39 meters and which should see the light in 2027.

ANDES (ArmazoNes high Dispersion Echelle Spectrograph), formerly known as HIRES, will be a powerful spectrograph that will split up light from astronomical targets into all its component wavelengths, enabling astronomers to study a wide range of wavelengths in high-resolution. More specifically ANDES is a fibre-fed echelle spectrograph that will split up the light with three spectral arms, spanning 0.4 - 1.8 µm (goal 0.35 - 2.4 µm) at ∼ 100,000 resolution.

View of Cerro Armazones in the Chilean desert, near ESO"s Paranal Observatory, site of the Very Large Telescope (VLT). Cerro Armazones will be the site for the European Extremely Large Telescope (E-ELT), which, with its 39-metre diameter, will be the world’biggest eye on the sky. The current steep dirt road to the summit can be clearly seen. At the top left you can see completion in July 2023 - Crediti: ESO/S. Brunier

This second-phase ELT instrument will combine its high resolution and wide spectral range with the huge surface area of the ELT to produce data with exquisite detail and sensitivity.
The high-resolution data collected by the instrument will enable astronomers to research an unprecedented range of topics spanning most areas of astrophysics.

Some of its most outstanding scientific goals include characterising the atmosphere of Earth-like exoplanets - with the ultimate goal of detecting signatures of life - identifying the very first generation of stars, studying possible variations in some of the fundamental constants of physics, and directly measuring the acceleration of the Universe’s expansion.

ANDES Artistic image - Crediti ESO.

The ANDES project is developed by an International Consortium composed by Research Institutes of 14 Countries: Brazil, Canada, Chile, Denmark, France, Germany, Italy, Poland, Portugal, Spain, Sweden, Switzerland, United Kingdom and USA. Italy participates with INAF and is the leader for the technical part.

More info:
ANDES
https://andes.inaf.it/
ANDES @ESO-VLT
https://elt.eso.org/instrument/ANDES/

ESO-ELT
https://en.wikipedia.org/wiki/Extremely_Large_Telescope
https://elt.eso.org/

The E-ELT here seen in a scale comparison with one of the VLT domes. ESO’s European Extremely Large Telescope (E-ELT) is ranked as one of two top-priority large ground-based projects in the ASTRONET Roadmap for European astronomy, which is backed by the entire European scientific community and supported by the European Commission. The Very Large Telescope (VLT) is a telescope operated by the European Southern Observatory on Cerro Paranal in the Atacama Desert of northern Chile. The VLT consists of four individual telescopes, each with a primary mirror 8.2 m across, which are generally used separately but can be used together to achieve very high angular resolution. Currently the VLT is the most productive ground-based facility for astronomy, with only the Hubble Space Telescope generating more scientific papers among facilities operating at visible wavelengths. The design for the E-ELT shown here was published in 2009 and is preliminary - Crediti ESO.

The researchers/technologists of the Brera Astronomical Observatory (OAB) have a fundamental role in the development of the ANDES instrument, as they have established a system engineering team that manages the entire technical part of the instrument.
This team is made up of the so called architects that is to say experts in various technical fields, such as optics, mechanics, modeling and others. The architects are responsible for the various hardware and software components of the scientific instrument, and coordinate with all the partners of the consortium for the design, construction and testing of the same.
The team is led by a system engineer, who supervises all activities and interfaces with the architects.
OAB therefore has the role of technical leader of the instrument, ensuring the quality and efficiency of the final product.