Open Science external engagement
Open Science at CERN is intrinsically international. As an intergovernmental research organisation serving a global scientific community, CERN engages actively in external Open Science initiatives to promote shared standards, interoperable infrastructures, and responsible practices that maximise the value and reuse of scientific knowledge. Through participation in international fora, collaborations with research infrastructures, and contributions to European and global policy discussions, CERN both shares its experience as a pioneer of Open Science and helps shape the evolving landscape of openness in research. In all external engagements, CERN upholds principles of transparency, scientific integrity, inclusivity, and sustainability, ensuring that openness is implemented in ways that remain aligned with CERN’s mission and community needs.
CERN and the European Open Science Cloud (EOSC)
CERN is an active partner in the European Open Science Cloud (EOSC), contributing to the development of a trusted, federated infrastructure for research data and services across disciplines and borders. CERN’s engagement builds on its long-standing Open Science leadership and a mature portfolio of production-grade services that already support large international scientific communities. As part of the EOSC Federation Build-up Phase, CERN was selected as one of thirteen first-wave candidate EOSC Nodes, integrating key services and research products into the federation, including Zenodo and other InvenioRDM-based repositories, Indico, CERNBox, the CERN Open Data Portal, INSPIRE-HEP and HEPData. CERN’s work during this phase focuses on validating interoperability, federated access through EOSC AAI, and the integration and discovery of CERN and High-Energy Physics research outputs within the EOSC Resource Hub.
In parallel, CERN is contributing directly to EOSC’s scientific use cases by enabling reproducible and reusable analysis workflows through services such as REANA, which provides an operational platform for preserving and re-executing complex computational analyses. CERN has supported the onboarding of REANA and related Virtual Research Environment capabilities onto EOSC compute resources, helping demonstrate how federated infrastructures can support real scientific workflows close to the data. Building on Phase 1 onboarding, CERN’s strategy for Phase 2 (from 2026) is to establish a fully-fledged CERN EOSC Node, providing a permanent, policy-backed entry point to CERN open data and services, with integrated support for FAIR-aligned and reproducible science at scale
This partnership strengthens CERN’s position as a reference organisation for Open Science in Europe, while ensuring that CERN’s own Open Science strategy remains connected to broader European priorities and collaborative opportunities in the evolving EOSC landscape.