About this blog

This blog is operated by the European Space Agency (ESA) as an unofficial and in-depth source of information for anyone interested in the Gaia mission.

It is updated by editors from the ESA Space Science communications team with input from Gaia scientists, engineers and mission controllers. Mission related updates and reports will be featured alongside those from guest bloggers from the wider Gaia community.

The team will certainly do their best to get you the inside information on the incredible Gaia mission!

Nonetheless, the Gaia blog is provided strictly on an unofficial, best-effort basis and ESA makes no warranty that the information, news, comments or opinions published in this blog are confirmed, accurate, official or in any way reflect the formal policies of the European Space Agency or our partners.

For the latest confirmed information relating to any ESA activity, please access the main ESA Web portal. For background information and official news relating to Gaia, please visit our Gaia minisite.

Public comments

We welcome your comments, feedback and questions – you’ll find the comment box at the foot of every blog post. We’ll do our best to answer your questions within a reasonable amount of time, however we cannot guarantee that all questions will be answered. Comments may be edited for clarity or length.

All public comments remain the property of the individual who posts them and ESA expressly disclaims any responsibility for their content or accuracy.

Off-topic comments and queries or any comment that is deemed inappropriate by the editors will be deleted.



  • Juan de Dalmau says:

    Congratulations on your very interesting and up to date Gaia blog!
    I noticed two small details for you to consider in future entries:
    – S1B, S3B, S5 etc are not rooms but buildings at CSG.
    – The correct spelling of CSG in French is Centre Spatial Guyanais (not Spatiale).
    I look forward to reading more!
    Best regards.

  • John Marsh says:

    Just a question : is there a web page that gives more information on future, planned activities for Gaia? All I could find was a comment “After 4 months’ commissioning, the nominal mission will last 5 years, ending in 2018”.

    Is there a web page with more detail ?
    Many thanks

    • Daniel says:

      Hi John,

      You can look here in the Science technical pages: cosmos.esa.int/web/gaia

      and here in the ESA Science Directorate site: http://sci.esa.int/gaia/


      • Anthony says:

        Thanks but Gaia has no single web page. Why is everything scattered and most information months old, like the focusing message? It is tiring to follow up the Gaia mission this way. Check out the Kepler page. It is one page and everything is accessible via one url. And latest comments and news are always at the top of the page not at the bottom.
        If you need a web designer to integrate it all and bring it up to snuff let me knwo- I will sponsor the update.

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