ESO Annual Report 2023

The ESO Annual Report 2023 is now available. It presents a summary of ESO’s many activities throughout the year. The contents include:

• The progress made in the construction programme of ESO’s Extremely Large Telescope (ELT), which passed the 50% completion milestone during the past year. 
• A selection of the fascinating scientific results published during 2023 using observations from ESO facilities. 
• Highlights of how ESO has contributed to and engaged with our communities and society, including a celebration of 60 years of ESO in our Host State Chile. 
• News from the La Silla Paranal Observatory and the Atacama Large Millimeter/submillimeter Array (ALMA), including forthcoming instruments and upgrades. 
• Updates on the technology development and R&D activities that keep ESO facilities at the forefront of astronomy.