Science Users Information

These pages are aimed at ESO community astronomers and contain all the information required in order to prepare, execute, process and exploit observations with ESO facilities. They also provide information on the scientific activities taking place at ESO. Details can be accessed via the navigation menu.


ESO Science Announcements

"Cosmic Ecosystems in Radio & Optical", ESO-SKA 2024 conference, Busselton, Australia, 9-13 December 2024

Published: 17 Jun 2024

Gas flowing into, out of, and around galaxies plays a key role in shaping how their properties evolve over cosmic time. The mechanisms driving these behaviors are poorly understood, largely because we lack detailed knowledge of fundamental gas properties across multiple scales and phases. Tackling these issues necessarily requires a multi-wavelength approach. Fortunately, the southern hemisphere hosts the most comprehensive suite of observational facilities available for tackling this topic, in the form of the ESO, ALMA, the Square Kilometer Array (SKA) precursors (MWA, ASKAP and MeerKAT), and very soon, the SKA-Mid and SKA-Low telescopes. This conference, which will take place near Busselton Australia, from 9 to 13 December 2024, is sponsored by both ESO and the SKA as it supports the joint science of both facilities that will be dominant in astronomy in the coming decade.

ESO Signs Agreement for ANDES Instrument on the ELT

Published: 10 Jun 2024

On 5 June, ESO signed an agreement with an international consortium of institutions for the design and construction of ANDES, the ArmazoNes high Dispersion Echelle Spectrograph. The ANDES instrument will be installed on ESO’s Extremely Large Telescope (ELT). It will be used to search for signs of life in exoplanets and look for the very first stars, as well as to test variations of the fundamental constants of physics and measure the acceleration of the Universe’s expansion.

Call for Letters of Intent for Public Surveys with KMOS

Published: 04 Jun 2024

Following a recommendation by the ESO Scientific and Technical Committee (STC), ESO is issuing a call for letters of intent for public surveys with KMOS. A public survey is understood to be an observing programme in which the investigators commit to produce and make publicly available, within a defined time, a fully reduced and scientifically usable data set that is likely to answer a major scientific question and be of general use and of broad interest to the astronomical community. The raw data are public immediately. These surveys are envisaged to be observing programmes with up to 200 observing nights to be allocated over six semesters with KMOS.

Upcoming Changes in the Observing Proposal Submission: Yearly Cycle and Fast Track Channel

Published: 04 Jun 2024

The Call for Proposals for the La Silla Paranal Observatory will move to a yearly cycle in 2025. To address the increased duty cycle resulting from this change, a Fast Track Channel with staggered deadlines throughout the year will be introduced simultaneously. The criteria and frequency for the Fast Track Channel are under discussion with the ESO advisory committees (Scientific and Technical Committee and Users Committee). The community will be informed regularly about the implementation of the yearly call and the Fast Track Channel through news in the upcoming Call for Proposals for Period 115, newsletter posts and direct emails to active Principal Investigators. The change follows recommendations made in a report by the Time Allocation Working Group almost a decade ago.

Second Announcement: "Hey GPT! Can you help me understand the Universe?", Online, 23-27 September 2024

Published: 31 May 2024

This is the second announcement of the conference “Hey GPT! Can you help me understand the Universe? A synoptic view of the impact of chatGPT-like technologies on the future of astronomy”. The list of invited speakers, including the title of their talks, can be found at the workshop webpage.

The Messenger

The Messenger 192 is now available. Highlights include:

  • Cirasuolo, M. et al.: The Rise of the Giant: ESO’s Extremely Large Telescope
  • Martinez, P. and the ELT Team: ESO’s Extremely Large Telescope Dome and Main Structure Update
  • Vernet, E. et al.: ESO’s Extremely Large Telescope Optics Update
  • Mendel, J. T. et al.: Mapping Galaxy Transformation with the MAGPI Survey
  • Colless, M. et al.: Paranal Instrumentation Plan Lessons Learned 2023

The ESO Science Newsletter

The April 2024 issue is now available.

The ESO Science Newsletter, mailed approximately once per month, presents the most recent announcements. Subscription is controlled through the Manage Profile link on the User Portal. Back issues (2013-) are archived.


Citing ESO data in research papers

Researchers are kindly asked to indicate the identifiers (programme IDs or Data DOIs) of the (new or archival) observations they used in their papers as explained in ESO’s data citation policy. This enables the telbib curators to cross-link research output to make data Findabie, Accessible, Interoperable, and Reusable as suggested by the FAIR Principles.  


Pitch Your Research to ESO COMM

Are you an author on an upcoming scientific study based on ESO data that could be relevant to journalists or the wider public? Or are you a Principal Investigator on ESO observations with potential to become stunning images? If so, please consider sending to ESO your paper and/or a preview of the image(s) obtained with ESO telescopes.