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The European Southern Observatory (ESO) is the pre-eminent intergovernmental science and technology organisation in astronomy. It carries out an ambitious programme focused on the design, construction and operation of powerful ground-based observing facilities for astronomy, to enable important scientific discoveries. ESO also plays a leading role in promoting and organising cooperation in astronomical research. ESO operates three unique world-class observing sites in the Atacama Desert region of Chile: La Silla, Paranal (home to the Very Large Telescope, VLT) and Chajnantor (host to ALMA, in partnership). ESO is also building the Extremely Large Telescope (ELT), which will be 'the world's biggest eye on the sky'.
The Garching headquarters coordinates all ESO activities, including telescope operations, instrument development, scientific research, data processing, archival, and outreach. It's the main hub for scientists, engineers, and administrative staff.
The campus includes advanced laboratories, workshops, the ESO Supernova Planetarium & Visitor Centre, and office buildings designed with a modern aesthetic. The ESO Supernova is an architectural highlight and a significant public engagement facility.
A highly international, collaborative, and research-driven environment, fostering innovation and scientific excellence. Staff from diverse backgrounds work together on cutting-edge astronomical projects.
As the central node for European ground-based astronomy, the HQ is crucial for strategic planning, technological innovation, international collaboration, and disseminating astronomical knowledge.
ESO's presence is primarily centered in Europe (Germany for Headquarters) and South America (Chile for its observatories). It serves a global community of astronomers from its Member States (Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Ireland, Italy, Netherlands, Poland, Portugal, Spain, Sweden, Switzerland, United Kingdom) and its host state Chile, plus strategic partner Australia. Its functions include telescope operation, instrument development, data archiving and distribution, scientific research, fostering international collaborations, and extensive public outreach and education programs worldwide.
Karl-Schwarzschild-Str. 2
Garching bei München
Bavaria
Germany
Address: Alonso de Córdova 3107, Vitacura, Santiago, Chile
Crucial for supporting the La Silla, Paranal, and ALMA observatories, as well as the construction of the ELT, by providing essential services and fostering strong ties with the host nation.
Address: Paranal Observatory, near Antofagasta, Chile (remote site)
Primary site for conducting cutting-edge astronomical observations with some of the world's most advanced optical telescopes.
Address: La Silla Observatory, near La Serena, Chile (remote site)
Continues to contribute to astronomical research, particularly for long-term programmes and hosting national telescopes.
Address: Near San Pedro de Atacama, Chile (remote site, for ALMA partnership)
Supports the operations of the Atacama Large Millimeter/submillimeter Array, the world's most powerful radio telescope for studying the cold Universe.
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As of April 2025, European Southern Observatory' leadership includes:
European Southern Observatory has been backed by several prominent investors over the years, including:
ESO's top executive leadership roles are typically long-term appointments. Any significant changes are usually announced via official press releases. As of mid-2024, there have been no widely publicized major changes (Director General or Director level) within the last 12 months. Minor transitions or internal role adjustments may occur but are not always broadly announced.
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The European Southern Observatory (ESO) primarily uses the email format [first_initial][last_name]@eso.org. Variations like [first_name].[last_name]@eso.org might also exist for some individuals or specific departments.
flastname@eso.org or first.last@eso.org
Format
jdoe@eso.org or jane.doe@eso.org
Example
90%
Success rate
eso.org • April 9, 2024
Astronomers using the NASA/ESA/CSA James Webb Space Telescope and ESO’s Very Large Telescope (VLT) have discovered a supermassive black hole actively accreting material in one of the most distant galaxies ever observed, GN-z11. This finding sheds new light on the growth of black holes in the early Universe....more
eso.org • February 28, 2024
Using data from ESO's VISTA telescope at the Paranal Observatory, complemented by observations from NASA's James Webb Space Telescope, astronomers have identified a candidate for the smallest free-floating, or rogue, planet discovered to date. This object, roughly the mass of Mars, wanders through space untethered to any star....more
eso.org • January 30, 2024
Observations with ESO’s Very Large Telescope (VLT) have revealed that Hygiea, an object in the main asteroid belt, could be classified as a dwarf planet. The observations showed Hygiea to be spherical, potentially taking the crown from Ceres as the smallest dwarf planet in the Solar System....more
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