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

Message from the Director General

Published: 22 Dec 2021

Dear colleagues

Another unusual year has passed, although with a very positive balance for ESO and its community. Despite all difficulties associated with the pandemic, a lot was achieved. The observatories remained open for most or all of the year, with a focus on maximising the delivery of scientific data. Work on the ELT continued at a very good pace, new instruments are at various stages of development, CTA is taking shape, and a variety of scientific activities keep the link between ESO and its community as strong as ever. The special effort that we are all making through these difficult times is warmly appreciated by ESO’s governing bodies, whose unfailing support is a clear tribute to the impact that the ESO community has on worldwide astronomical research.

Phase 2 Observations Preparation for Observing Period 109

Published: 22 Dec 2021

With the release of the La Silla Paranal telescope schedule, the preparation of Service Mode (SM) observations (Phase 2) starts. The deadline for the submission of the Phase 2 material for Period 109 observations is 3 February 2022.

Period 109 Telescope Allocation

Published: 22 Dec 2021

The 109th Observing Programmes Committee (OPC) met online during November 2021. Based on the committee's recommendations to the ESO Director General, a total of 2093 (10-hour equivalent) nights of Designated Visitor Mode and Service Mode observations were allocated on the VLT/VLTIVISTA, the 3.6-metre and NTT, and APEX telescopes. The submission deadline for Phase 2 Service Mode observations is Thursday 3 February 2022; see the separate announcement for further details.

ALMA Cycle 9 Pre-Announcement

Published: 20 Dec 2021

The Joint ALMA Observatory (JAO) will start Cycle 9 observations in October 2022. A Call for Proposals (CfP) with detailed information on Cycle 9 is anticipated to be issued in March 2022 and the deadline for proposal submission will be in April 2022.  A pre-announcement has been issued highlighting aspects of the CfP to assist with early planning. More information on the Proposal Review Process, and full details on the offered capabilities can be found on the ALMA Science Portal. For additional questions regarding the Cycle 9 Call for Proposals, please visit the pre-announcement, the Q&A page or contact the ALMA Helpdesk.

SciOps 2022: Artificial Intelligence for Science and Operations in Astronomy

Published: 20 Dec 2021

The next Science Operations workshop, SciOps 2022, will be dedicated to Artificial Intelligence (AI) for science and operations in Astronomy and will take place on 16-22 May 2022 at the ESO Headquarters in Garching bei München. Building on the success of the previous series of similar events, this ESO/ESA workshop aims to facilitate the exchange of current developments and applications of AI-enabled technologies in science operations for space- and ground-based astronomical facilities.

The Messenger

The Messenger 185 is now available. Highlights include:

You can subscribe to the hardcopy of The Messenger or browse the complete archive of issues. 


The ESO Science Newsletter

The December 2021 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.