IAU Symposium 355 aims to survey the denizens of the low surface brightness skies, at all wavelengths and resolutions, to show the richness of physical processes taking place in this regime, which has not been fully explored. From the Zodaical light in the Solar System all the way to the cosmological backgrounds, and from the contributions of amateurs to space-based instrumentation, this Symposium will provide participants with a broad glimpse of one of the few last niches that remain to be discovered.



  1. Abstract submission and grant application are now closed
  2. First and second announcements published here
  3. Registration and calls for grant applications and abstract open


Ethics and Anti-harassment statement


The organisers consider this IAU Symposium to be a privileged occasion for free and frank interchange of scientific ideas, as well as for the nurturing and creation of professional and social contacts. Any abuse of power or inappropriate behaviour has no place at IAU Symposium 355.

We specifically refer to the IAU anti-harassment policy and the  EAS Ethics Statement and Guidelines for Good Practice. These will apply during IAU Symposium 355. By registering for this conference, all participants confirm that they have read the documents and that they will follow its recommendations.