Science Announcements

Major New ALMA Science Archive Features

Published: 25 Aug 2026

The ALMA Science Archive has received substantial feature upgrades, some of which have been worked on for years.

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Comparison of Panel Review and Distributed Peer Review at ALMA

Published: 25 Aug 2026
Since 2021, ALMA has used a distributed peer review model instead of traditional panel-based review. In a recent study, John Carpenter and Andrea Corvillon analysed more than 20,000 proposals and over 160,000 individual reviews over 13 ALMA cycles (Cycles 0–12) to examine whether the statistical patterns of proposal evaluation changed. Overall, the study finds that the outcomes of distributed peer review are statistically consistent with those of traditional panel review. You can read a summary of the result on the ALMA website and the paper accepted for publication in PNAS.
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Introducing the 2026 ESO Fellows - Germany and Chile

Published: 25 Aug 2026

The Offices for Science are very pleased to present the 2026 ESO Fellows. Here is an introduction to the Fellows due to start in Garching and Chile later this year.

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ESO Fellowship Programme 2026 / 2027

Published: 21 Aug 2026
ESO's prestigious postdoctoral fellowship programme in both Garching (Germany) and Santiago (Chile) offers outstanding early-career scientists the opportunity to further develop their independent research programmes. From exoplanets to cosmology, observational, theoretical and fundamental astrophysics, these are all areas where ESO Fellows can benefit from a highly dynamic scientific environment, at some of the most advanced ground-based telescopes in the world. Do watch ESOCast 165 to hear what previous ESO fellows have to say about the fellowship programme or watch the virtual tour to ESO's premises from 2020 or 2021 where young scientists could ask questions about the fellowship programme.
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Registration Open for ESO Workshop "Bridging Horizons: Harnessing ESO's Current Facilities for the Dawn of Exoplanet Population Studies", 2-6 November 2026

Published: 21 Aug 2026
Observations with the VLT, VLTI, and ALMA have pioneered exoplanet science over the past decade. With upcoming results from ESA missions such as Gaia, PLATO, and Ariel, exoplanet research is entering a transformative era of population-scale characterisation surveys. This workshop will bring the community together to explore how current ESO facilities, together with powerful archival resources, can best complement exoplanet demographics, atmospheres, and planet formation at the dawn of population-scale studies.
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Fast Track Channel FTC 117A Time Allocation

Published: 20 Aug 2026
The time allocation process for ESO telescopes for the first Fast Track Channel FTC 117A (1 September 2026 - 28 February 2027) has been completed. This was based on the scientific evaluation of the Distributed Peer Review (DPR). A total of 505 hours of Service Mode observations (excluding filler programmes) were allocated on the VLT/VLTI, which is 10% higher than the total time initially reserved for this first FTC call (460 hours). As a reminder, only VLT/VLTI Normal programmes with a maximum time request of 30 hours were offered in FTC 117A.
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Release of SPHERE Data Indicating the Presence of a Companion for Betelgeuse

Published: 19 Aug 2026
Betelgeuse is the most studied Red Super Giant. In 2024, through a reinterpretation of its long secondary period (LSP), a close orbiting stellar companion was suggested to exist, with a maximum elongation in December 2024. The goal was to search for this secondary component.
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First Data Release from the INSPIRING ESO Large Programme

Published: 23 Jul 2026
The first Phase 3 data release from the INSPIRING ESO Large Programme (1103.D-0797) is now available through the ESO Science Archive. This release provides fully reduced and calibrated VLTI/PIONIER observations obtained in the GRISM_H mode for eight post-AGB binary systems. 

The INSPIRING programme uses VLTI observations to study the inner rims of dusty circumbinary discs around post-AGB binaries.
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Call for Proposals for Period 118

Published: 15 Jul 2026
The Call for Proposals for observations at ESO telescopes in Period 118 (1 May 2027 - 30 April 2028) has been released. Please consult the Period 118 document before applying for time on ESO telescopes. All technical information about the offered instruments and facilities can be found on the ESO webpages linked from the Call for Proposals. The proposal submission deadline is on 22 September 2026, 12:00 CEST.
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ESO’s first Fast Track Channel Call 117A Proposal Submission Statistics

Published: 15 Jul 2026
ESO received 244 valid proposals for its first Fast Track Channel (FTC) call 117A (1 September 2026 – 28 February 2027). The deadline for proposal submission was 15 June 2026. The total time request amounted to approximately 1970 hours (of which 80 hours were Target-of-Opportunity requests), for a total available time of 460 hours for this first FTC call. This corresponds to a mean oversubscription factor of 4.3, comparable to that of the previous Yearly Cycle (P117). The telescope with the highest oversubscription is Melipal (UT3), with a total request of 643 hours (excluding ESPRESSO), corresponding to an oversubscription factor of 7.1 (again excluding ESPRESSO). The most demanded instrument was X-Shooter (406 hours), followed by ESPRESSO (307 hours, to be distributed among several UTs; labelled as ICCF1 in the above graph), and MUSE (236 hours). As a reminder, only VLT/I Normal programmes with a maximum time request of 30 hours were offered in this first FTC call.
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