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

Call for Proposals for Period 114

Published: 20 Feb 2024

The Call for Proposals for observations at ESO telescopes in Period 114 (1 October 2024 - 31 March 2025) has been released. Please consult the Period 114 document before applying for time on ESO telescopes. All technical information about the offered instruments and facilities is contained on ESO web pages that are linked from the Call. The proposal submission deadline is 12:00 CET 21 March 2024.

New ALMA Development Studies

Published: 20 Feb 2024

To keep ALMA at the forefront of technology, ESO collaborates closely with the member state institutes, who are invited to submit proposals for development studies through a call for proposals issued by the contracts and procurements department. The evaluation of the latest call has now been completed and seven new agreements have been signed. Five of these studies are directly supporting the ALMA wideband sensitivity upgrade (WSU), an ambitious project to increase ALMA's instantaneous bandwidth by up to four times. The two remaining studies are working to bring advanced data products for ALMA and exploring the science cases for focal plane arrays on ALMA.

Registration Open for the Conference "New Heights in Star Formation"

Published: 19 Feb 2024

The call for abstracts and registration page of the workshop ‘New Heights in Planet Formation’ will open on 1st March. The deadline for the submission of abstracts is the 31st March 2024. Please note that ESO has a limited budget to support early career participants without funding.

ESO On-line Conference: Hey GPT! Can You Help Me Understand the Universe?"

Published: 16 Feb 2024

ESO is pleased to announce the conference “Hey GPT! Can you help me understand the Universe?” from 23 to 27 September 2024. The conference will be held fully online (as a Zoom meeting and broadcast live on YouTube). It is anticipated the live programme to start around 2 pm CEST and finish around 6 pm CEST. The conference, aimed primarily at astronomers, will focus on the impact of generative Artificial Intelligence (AI) and large language models (LLM), such as the generative pre-trained transformer (GPT) languages, on science and mostly on astronomy.

Period 113 Phase 2: Deadline

Published: 19 Jan 2024

With the release of the La Silla Paranal telescope schedule, the Phase 2 preparation for runs scheduled in Service Mode begins. The deadline for the submission of the Phase 2 material for Period 113 is Thursday, 22 February 2024.  

The Messenger

The Messenger 191 is now available. Highlights include:

  • Barcons, X.: Sixty Years of Engagement Between ESO and Chile: Past, Present and Future
  • Bacon, R., et al.: Scientific Highlights from Ten Years of the MUSE Collaboration
  • Romaniello, M. et al.: The ESO Science Archive Facility: Status, Impact, and Prospects

The ESO Science Newsletter

The January 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.


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.