Center for Astrophysics Harvard & Smithsonian's research now spans 65 countries

Research at Center for Astrophysics Harvard & Smithsonian is a global undertaking: the university co-authors with 755 institutions in 65 countries, and international collaborators appear on 24% of its output.

Its largest single research relationship is with Harvard University in United States, at 19,297 joint works. Across the network, five-year output reaches 20,951 co-authored works.

Connectivity of this kind is increasingly the currency of modern science, and it is measurable: the open scholarly record makes every one of these relationships public and checkable.

The Research Collaboration Index, the first global account of how universities actually collaborate, publishes its first full edition on Tuesday 15 September at 09:00 UK.

Every figure derives from the open global research record and is checkable at source.