Gaia Bulletin #06

18 December 2025

Gaia Bulleting #06 has been published now!

read more

2025-12-18 Gaia finds hints of planets in baby star systems

18 December 2025

Ever wondered how planetary systems like our own Solar System form? Thanks to Gaia's astrometric information, hints of unseen companions were detected in 31 baby star systems. Observations from the ALMA observatory show us what they look like. Find more details here:... read more

2025-12-18 Update to the Gaia DR4 contents page

18 December 2025

Today, an update was published to the Gaia Data Release 4 contents page, providing an overview of the different data types expected. This publication was accompanied with a preview of a new Gaia data product: residual images. More details can be read from the image of the week story. A full overview of what to expect with Gaia Data... read more

2025-12-18 Gaia DR4 data product introduction: the residual image

18 December 2025

With Gaia Data Release 4 the astrometry will be again improved upon, and an exciting new data product referred to as "residual image" will also be published. It has the potential to reveal scattered light from protoplanetary disks and other sources of diffuse light emission like the debris disk or the dusty circumstellar environments... read more

2025-12-17 Workaround solutions for the Gaia Archive issues following the infrastructure upgrade

17 December 2025

Following Gaia archive release 3.10 on 2 December, which features a major backend infrastructure upgrade of the archive in preparation of Gaia DR4, several issues have surfaced. We present several workaround solutions while we work to resolve the issues.

read more

2025-12-12 Farewell, Gaia! Short movie on the Gaia spacecraft passivation

16 December 2025

The European Space Agency (ESA) has powered down its Gaia spacecraft after more than a decade spent gathering data. Data that are now being used to unravel the secrets of our home galaxy. On 27 March 2025, Gaia’s control team at ESA’s European Space Operations Centre carefully switched off the spacecraft’s subsystems and sent it into a... read more

2025-12-01 Gaia Archive downtime

1 December 2025

Currently the Gaia Archive is down for maintenance. The Archive will be back online from 2 December at 12:00.

read more

2025-11-10 New Gaia DR3 known issue on external catalogue CatWISE2020

11 November 2025

A new known issue was published in relation to the external catalogue CatWISE2020 as available from the Gaia Archive. Find the details on this new known issues through this link: https://www.cosmos.esa.int/web/gaia/dr3-known-issues#ExternalCatWISE2020

read more

Gaia Bulletin #05

5 November 2025

Gaia Bulletin #05 has been published now...

read more

2025-11-05 Extended downtime expected of the Gaia Archive

5 November 2025

An extended downtime is expected of the Gaia archive from Friday 5 December 15:00 CET until Wednesday 10 December 10:00 CET to allow for maintenance. Gaia data is also served from our partner data centres. Our apologies for the inconvenience.

read more

2025-10-31 New website for the Science programme

31 October 2025

A new website for the science programme was launched: https://www.science.esa.int/. Also Gaia can be found, with a page featuring a summary and key milestones of the Gaia mission.

read more

2025-10-29 ESA internship opportunities with the Gaia mission

29 October 2025

Soon, the ESA internship opportunities will be announced on ESA's job portal. The opportunities at the Science and Operations Department (SCI-S) and the Science Engagement & Oversight Office (SCI-E) are already announced on this website: https://www.cosmos.esa.int/web/science-internships/2026-projects.

Two of these... read more