News and Activities
GGOS IberAtlantic (GGOS IA) functions as a regional node of GGOS, focusing on geodetic activities across the Iberian Peninsula and the Atlantic region. GGOS IA fosters collaboration among geodetic institutions while promoting scientific research and technological development tailored to the region’s unique geophysical characteristics.
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GGOS, IAG, 📰 General NewsMeet Alfonso Caldiero | Early Career Scientist
ECS, 📰 General NewsAlfonso Caldiero, a Italy researcher:
Alonso is from near Naples. He earned a bachelor’s degree in aerospace engineering in Naples and a master’s degree in the same field at TU Delft in the Netherlands. During his master’s thesis, he discovered an observatory in Brussels, which led him to complete his thesis there and then stay on for a PhD. He is now close to finishing his PhD, which focuses on geodesy, specifically the study of spacecraft trajectories around small bodies such as asteroids and comets.
The research focuses on understanding the internal structure of small bodies like asteroids, which cannot be observed directly. Instead, the approach uses how an asteroid’s internal mass distribution affects its gravity field and, in turn, the trajectory of a spacecraft orbiting it. During the PhD work, methods were developed to directly infer an asteroid’s internal mass distribution from gravity field measurements obtained from spacecraft orbits. This research is particularly timely and exciting because many missions to small bodies are currently underway or planned, providing a large amount of data to analyze.
Do you want to know more about Alfonso’s career? Watch the video below:
Learn more about Alfonso’s research:
Learn more about ECS activities:
These videos were produced by the IUGG ECSNet. All IAG related videos are available at IAG-GGOS YouTube Channel.
Last Call: Join the Geodesy Cartoon Competition Before March 22!
GGOS, 📰 General NewsTime is running out! The Geodesy Cartoon Competition is open for just one more month — your final chance to get creative and win up to 900 € in prizes!
Whether you’re a geodesist, a student, or just someone with a fun idea about how to make Earth science visible and understandable, now’s the moment to share it. You don’t have to be a professional artist — if you have a clever concept, team up with a friend who can draw, or explore creative AI tools to bring your vision to life.
Let your imagination explain what geodesy does for our planet — from mapping Earth’s shape and gravity to supporting navigation, climate research, and disaster management.
Don’t miss the chance to make people smile and think about geodesy in a new way. Submit your cartoon by March 22, 2026, and become part of a global initiative that turns science into art!
Author: Martin Sehnal (Director of GGOS Coordinating Office)