New Website: Discover the Importance of VLBI for Geodesy and Society

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This accessible and visually engaging explainer introduces the fundamentals of Very Long Baseline Interferometry (VLBI) and shows how radio telescopes around the globe measure distances of thousands of kilometres with millimetre precision. It highlights contributions to the International Terrestrial Reference Frame, satellite navigation, and Earth observation, and showcases Australia’s role in global VLBI operations.

IAG News – New Ways to Stay Connected

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Since June 2025, IAG news is centrally published as blog posts on the new website. Updates are available via mailing lists, social media, RSS feed, and a monthly PDF Newsletter. The redesigned PDF Newsletter (since January 2026), now issued by the IAG Secretariat at BEV in Austria, summarizes key developments and is accessible online and via the Journal of Geodesy.

Last Call: Join the Geodesy Cartoon Competition Before March 22!

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Last chance to join the Geodesy Cartoon Competition! 🎨 Submit your creative idea by March 22, 2026, and win up to 900 €. Team up or use AI to bring it to life!

TIGER Symposium in Geodesy 2026 – Abstract submission and registration open

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Abstract submission for the TIGER Symposium in Geodesy 2026 is now open. The symposium will take place from September 28 to October 1, 2026, in Gävle, Sweden, and online. Abstracts and applications for travel support must be submitted by April 15, 2026. Travel funding is available, with a focus on early career scientists and underrepresented groups.
REFAG UAW

REFAG2026: Early bird registration deadline – 15 December 2025

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This is a reminder to all colleagues interested in participating in the next IAG Symposium Reference Frames for Applications in Geosciences (REFAG2026), that early bird registration closes on 15 December 2025. The symposium will take place from 2 to 4 March 2026 in Munich, Germany.

Turn Your Holiday Creativity into a Geodesy Cartoon!

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Christmas time and the upcoming holidays are perfect for slowing down, relaxing — and letting creativity shine. Between the festive lights and quiet days, why not take a moment to imagine how geodesy could make people smile? The Geodesy Cartoon…
IAG Early Career Scientists ECS Networking

Open Call for Early Career Researchers – EPOS-GNSS TCS Participation in EPOS Days 2026

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The GNSS Data & Products Thematic Core Service (EPOS-GNSS TCS) will support the participation of two Early Career Researchers (ECRs) in the ECR session at EPOS Days 2026 (16–20 March 2026, Cagliari, Italy). Selected ECRs will give a flash presentation and a poster, with travel support provided according to EPOS rules. Eligible applicants must be PhD students or have obtained their PhD within the last 7 years, actively use EPOS-GNSS data or products, and be able to attend the event. Applications (single PDF) including abstract, motivation, and a recommendation letter must be submitted by 5 December 2025 to

New IAG Publications | Geodesist’s Handbook 2024 & IAG Travaux 2023–2025

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The IAG has released two flagship open-access references: the Geodesist’s Handbook 2024 and the IAG Travaux Report 2023–2025. The Handbook presents IAG statutes, structure, officers, and planned scientific activities, while the Travaux documents scientific and organizational progress across all IAG components. Both volumes provide DOIs for the full work and for each chapter, supporting precise citation and strengthening the international visibility of IAG activities.

Call for Abstracts – EGU26 Session G2.2 “New Technologies for GGOS”

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The Global Geodetic Observing System (GGOS) invites contributions to Session G2.2 “New Technologies for the Global Geodetic Observing System (GGOS)” at the EGU General Assembly 2026 in Vienna. This session will highlight innovations and advances in geodetic observing systems for monitoring Earth’s geometry, gravity, and rotation. Topics include emerging technologies such as relativistic geodesy, quantum sensors, next-generation laser systems, LEO-based positioning, navigation and timing (PNT), and other forward-looking geodetic techniques. The session also welcomes contributions on general GGOS developments, new observatory concepts, and strategies to enhance the global geodetic infrastructure. Join us in shaping the future of geodesy and exploring how cutting-edge technology can strengthen GGOS’s role in observing and understanding our dynamic planet. Abstract Deadline: 15 January 2026, 13:00 CET

GGOS Days 2025 | Report

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The GGOS Days 2025 took place on 3–5 September within the IAG2025 Scientific Assembly in Rimini, Italy. The event featured five symposia and a highlight session on global geodetic infrastructure, standardization, regional collaboration, AI, space weather, and geohazards. Sessions on Geodesy for Society emphasized data management, policy engagement, and communication, highlighting geodesy’s role in sustainable development. The GGOS Governing Board and Science Panel met in hybrid format to review the implementation plan, update outreach materials, and coordinate capacity-building efforts. Read the full report for details.