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IGS Workshop 2026

The International GNSS Service Workshop 2026 will be held 1–5 June 2026 at the Intercontinental Santiago, Chile. The workshop will gather global experts in GNSS and geodesy to share insights, showcase innovations, and shape the future of geodetic infrastructure.
Doris Days School 2025
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IDS DORIS School | DORIS Days 2025

The IDS organizes new “DORIS Days” for early-career researchers and students, featuring online sessions on 3 November and a hybrid workshop on 5 November in Athens. Topics include the DORIS system, IDS applications, and hands-on data processing with Jupyter Notebook.
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16th SIRGAS School: “VLBI and SLR Data Processing”

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.
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Satellite Laser Ranging – How SLR Powers Geodesy

Discover Satellite Laser Ranging (SLR) – lasers from ground stations measure satellite and Moon positions with millimeter precision. SLR supports the Terrestrial Reference Frame, tracks Earth rotation, tectonic motion, improves gravity and sea level models, and tests relativity. Explore the science behind these precision measurements in our Geodesy Cartoon.
vlbi göteborg sweden
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IVTW2025 – 10th International VLBI Technology Workshop

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.
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GGOS Days 2025 – Invitation

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.
Geodesy Cartoon
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Lost Without Geodesy

What happens if geodesy disappears? Phones, planes, and warning systems would fail. Our cartoon “Lost Without Geodesy” shows how vital this invisible science is. Geodesy powers GNSS, enabling precise positioning, earthquake monitoring, sea level studies, and more. Without it, GNSS would drift and global systems would collapse.
Geodesy Cartoon
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First Geodesy Cartoon Released

We’re excited to share the first release in our new cartoon series about geodesy: The New Height of Qomolangma (Mt. Everest). This cartoon offers an engaging and educational look at the long-standing debate between China and Nepal over the…
Gravity quantum gravimeter
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New Horizon Europe Project “EQUIP-G” on terrestrial quantum gravimetry

June 1st was the start of the new Horizon Europe Project “EQUIP-G” Imaging the Earth's interior has always been one of the key challenges in geosciences as it is a prerequisite for understanding our planet's internal dynamics and the coupling…
IAG website
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Welcome to the New IAG Website

We are excited to announce the official launch of the new IAG website geodesy.science. This launch marks a major milestone for the IAG and reflects our ambition to make geodesy more visible, accessible, and connected — both within the scientific…