16th SIRGAS School: “VLBI and SLR Data Processing”

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The 16th SIRGAS School (San Juan, Argentina | Oct 27–Nov 1, 2025) will train professionals in VLBI and SLR data processing, strengthening geodetic capacities in Latin America through theory and practice at the Félix Aguilar Astronomical Observatory. Join us.
Africa Workshop

South African National Geodesy Workshop

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South Africa, with a rich geodetic history, faces fragmented efforts. A National Geodesy Workshop aims to unite stakeholders, enhance coordination, and align with the UN's GGRF agenda—establishing a National Geodesy Working Group to support national development and global collaboration in geodesy.
vlbi göteborg sweden

IVTW2025 – 10th International VLBI Technology Workshop

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This VLBI Workshop will be held October 21–25, 2025, at Chalmers University of Technology, Gothenburg, Sweden. It gathers global experts to discuss VLBI advancements, including station systems, recording, correlation, imaging, and space VLBI. Participants can visit Onsala Space Observatory and receiver clean rooms. Abstract submission closes September 1.

GGOS Days 2025 – Invitation

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Join us for GGOS Days 2025, held 1–5 September in Rimini, Italy, alongside the IAG2025 Scientific Assembly. Discover the latest GGOS achievements and challenges, connect with the community, and access contributions later in the GGOS Cloud.

COSPAR 2026 Scientific Assembly

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The 46th COSPAR Scientific Assembly will be held in Florence, Italy, 1–9 August 2026, featuring ~150 meetings across space research, including geodesy. Abstracts are due by 13 February 2026. The IAG proudly sponsors COSPAR 2026. Details, registration, and submission: cospar2026.org.

Meeting Summary – Glacial Isostatic Adjustment Workshop 2025

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The 2025 Glacial Isostatic Adjustment Workshop took place June 2–6 in Sidney, BC, Canada, with 136 participants from 23 countries. Topics included Earth rheology, ice sheet dynamics, and sea-level change. Highlights included strong early career researcher participation, a field trip, and new initiatives like a GIA model database and a planned open-source tutorial.

Geodesy Virtual School 2025 – Summary

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The 2025 Geodesy Virtual School focused on reference frames and Earth system monitoring, held in five free online sessions coordinated from Argentina with support from SIRGAS, IAG, IUGG, and others. It featured 37 instructors and global participation, especially from the Americas. All lectures, in English or Spanish with subtitles, are available online, promoting inclusive, high-quality geodetic training worldwide.
IAG Scientific Assembly 2025

IAG Scientific Assembly 2025 – Third Circular

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The IAG Scientific Assembly will take place in Rimini, Italy, on September 1–5, 2025. Abstract selection is complete, with 300 oral and 388 poster presentations scheduled. Early Career Scientists are encouraged to apply for IAG Travel Grants by July 31. Social events include an ECS Dinner and a Women in Geodesy Breakfast.
REFAG UAW

Call for Abstracts: REFAG2026 – IAG Symposium on Reference Frames for Applications in Geosciences

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The REFAG2026 symposium on reference frames in geosciences will take place in Munich from 2–4 March 2026, followed by the GGOS/IERS UAW. Abstract submissions are open until 15 October 2025. Join us in shaping the future of geodetic reference frames!

Virtual School of Geodesy – Reference Frames, Geodynamics, Atmosphere

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Are you passionate about geodesy, climate change, and the global systems that help us understand our planet? Don’t miss this unique opportunity to dive deep into one of the most relevant scientific topics of our time! This international online…