News and Updates

Release of Continuum, CO, and Water Vapour Maps of the Orion Nebula — First Millimetre Spectral Imaging with APEX/CONCERTO

Published: 16 Oct 2025

This data release presents the first millimetre spectroscopic imaging of the Orion Nebula obtained with the CONCERTO instrument on the APEX telescope. The observations were carried out on 24 August 2022 under ESO programme 110.A-4194 (110.23NK; PI Désert) in excellent atmospheric conditions (pwv ≈ 0.4 mm). The dataset covers 0.5 deg² centred on the Orion Nebula (M42), spanning the frequency range 130–310 GHz (0.97–2.3 mm) at a typical angular resolution of 27″ and a spectral resolution of 6 GHz (sampled at 3 GHz). 


Second Release of VST-OMEGACAM Imaging Products from the Collaboration with INAF

Published: 16 Oct 2025

The VLT Survey Telescope (VST) at Paranal is now owned and operated by INAF, which is responsible for processing the data and releasing them via the ESO Archive.

The imaging data included in the current DR2 were obtained using the wide-field camera OmegaCAM with the g, r, i, and z filters and belong to the following projects:

  • "Pre-supernova Outbursts in Galactic Red Supergiants: Predicting the Next Galactic SN Event" - GALRSG, P.I. F. Bocchino, PROG_ID: 113.26YN.001 

Release of the SEDIGISM Survey

Published: 25 Sep 2025

This data release presents the first instalment of the SEDIGISM (Structure, Excitation and Dynamics of the Inner Galactic Interstellar Medium) survey, a large spectroscopic programme mapping molecular gas across the inner Milky Way. The survey was conducted with the APEX 12-m telescope between 2013 and 2017 and covers approximately 84 deg² of the southern Galactic plane, with continuous coverage from −60° ≤ l ≤ +17° at |b| ≤ 0.5°. Additional regions extend the latitude coverage (e.g. towards the Central Molecular Zone, RCW 120, and the Nessie filament) and include a dedicated 2 deg² field around W43 for cross-comparison with northern surveys.


Issue on reduced NIRPS data between April and July 2025

Published: 10 Sep 2025

NIRPS data for observations between 2025-04-01 12:00 and 2025-07-24 12:00, reduced with the pipeline version 3.2.6, have been affected by a technical issue impacting the accuracy of the radial velocity. For science cases requiring a precision better than 10 m/s, those data should not be used. We strongly advise (re-) downloading the updated Phase 3 data, which have been reprocessed with the pipeline version 3.2.7 (refer to the PROCSOFT FITS keyword).

Also, please beware that the QC0.NIRPS quick-looks in that period have not been reprocessed and remain affected by this issue.

We apologize for any inconvenience this may cause and thank you for your understanding.


Release of “The MUSE View of the Sculptor” Programme

Published: 22 Aug 2025

This data release presents a wide-field MUSE mosaic of the nearby starburst galaxy NGC 253 (the Sculptor Galaxy), covering its entire star-forming disc. The mosaic combines 103 individual MUSE pointings in Wide Field Mode, spanning 20 × 5 arcmin² and totaling approximately 25 hours of on-source exposure. Most of the observations (101 pointings) were obtained without adaptive optics (AO) using short exposures (~850 s), while the two central nuclear pointings were observed with AO and longer integrations (~2000 s).


Archive User Interfaces: Abandoning the Request Handler

Published: 24 Jul 2025

As of Monday 28th of July 2025, the archive user interfaces will no longer offer the option to download data via the Request Handler. The Download Portal will remain the only choice available for web-access to archival data.


Release of pipeline processed CRIRES+ spectra

Published: 04 Jun 2025

This data release provides access to reduced scientific data obtained with the cryogenic high-resolution spectrograph CRIRES+, an upgrade of the original instrument CRIRES, which was available till July 2014. CRIRES+ is in operation at the ESO VLT since October 2021. This instrument is a cross-dispersed infrared echelle specrograph with increased wavelength range covered simultaneously by a factor of ten in respect to the old CRIRES. In addition, CRIRES+ is equipped with a new detector focal plane array composed of three Hawaii 2RG detectors with a 5.3 μm cut-off wavelength, a new spectropolarimetric unit was added, and the calibration system was enhanced.


ARP@VST : a multi-band (g, r, i, H𝛼) imaging survey of the peculiar galaxies in the ARP catalog, visible from the ESO Cerro Paranal Observatory

Published: 23 May 2025

This is a public observing program, and newly reduced data will be made publicly available as soon as they are observed and processed.


Release of NIRPS pipeline reduced spectra

Published: 21 May 2025

This is the collection of reduced spectra from the high-resolution near-infrared spectrograph NIRPS (Near Infra-Red Planet Searcher) in operation at the ESO La Silla 3.6m telescope.


First Data Release of the PHANGS–MUSE Nebular Catalogue

Published: 14 May 2025

The first release of the PHANGS–MUSE Nebular Catalogue (PI: Schinnerer) is now available from the ESO Science Archive Facility. This release is based on integral-field spectroscopic observations obtained with the MUSE instrument at the VLT, primarily under the PHANGS–MUSE Large Programme, and supplemented by data from additional ESO programmes (see PHANGS-MUSE release description).


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