University of Maine: #255 in the world for Earth & Planetary Sciences collaboration
University of Maine stands at #255 of 1,112 universities worldwide on the Earth & Planetary Sciences collaboration index, the strongest of its 20 subject standings in the 2026 Research Collaboration Index, published today.
The standing rests on the open scholarly record: 430 co-authored works in the field over 2021 to 2025, built with 337 collaborating institutions across 44 countries, with a field-weighted citation impact of 3.25.
University of Maine is ranked #873 in the world.
The full index, all 26 subject rankings and complete methodology are now public.
Every figure derives from the open global research record and is checkable at source.
For universities
The GRP Partnership Intelligence Platform
Your university beside the peers you choose, across both GRP indices: the universities and companies your peers work with that you do not, live funding calls matched to your strengths, the EU projects your peers have won, and a brief ready for your executive. A partner service now onboarding founding partner universities: enquire, and the GRP team will confirm availability and pricing for your university.