The call aims to support research visits to European institutes that provide direct training and expert guidance in multi-messenger astronomy. The program covers a wide range of domains, including gravitational waves, neutrinos, cosmic rays, and photons across the entire electromagnetic spectrum, from very-high-energy gamma rays to X-rays, UV, optical, near-infrared, and radio bands. The goal is to enhance and expand expertise in the observational, data analysis, and theoretical aspects across the various ACME messengers and multi-wavelength domains.

Eligible candidates are scientists (PhD students, post-doc fellows, staff) from research institutes and universities in both EU and non-EU countries. The applicant can apply for access (visit) to an institution located in a country other than the country of their home institution. 

The call opens on 9 November 2026, with a submission deadline of 8 December 2026 at 17:00 CET. Research visits are expected to take place before the end of June 2027. Please note that some of the institutes are unavailable to host visits during this call (see list of available institutes in the form).

Call details and application form