image: Portrait of Tim Lichtenberg, the Europlanet Early-Career Medal Winner 2025.
Credit: Credit: T Lichtenberg/U. Groningen.
Europlanet has announced the winners of its inaugural Career Medals, which are designed to honour outstanding contributions from planetary scientists at three stages of their careers.
Dr Tim Lichtenberg is awarded the Europlanet Early-Career Medal in recognition of an interdisciplinary approach that has led to significant advances in the understanding of planetary formation and exoplanet evolution. Lichtenberg’s work has shed light on the influence of radioactive elements on early planetary heating, the distribution of water and other volatile materials in planetary systems, and how planets evolve to become habitable.
Dr Benoit Carry is awarded the Europlanet Mid-Career Medal for his work to characterise the internal structures and compositions of asteroids and planetary small bodies. Carry’s research has given critical insights into the evolution of the early Solar System, as well as making an important contribution to planetary defence efforts and to open science.
Prof Jean Schneider is awarded the Europlanet Lifetime Achievement Medal for his role as one of the ‘architects’ of modern planetary sciences. In addition to pioneering key methodologies for detecting and characterising exoplanets, including transit photometry and transmission spectroscopy, Schneider founded the Encyclopaedia of Exoplanetary Systems, which for thirty years has been a cornerstone resource for the international community.
Noah Jäggi, Chair of the Medal Award Committee said, ‘With this first set of Europlanet Career Medals, we are delighted to be able to recognise the contributions of three individuals who have had such a profound impact, not just on planetary science, but on our whole community. The achievements of our inaugural medallists demonstrate that, at each stage of a career, scientists can make a substantial difference to the field in which they work and to the colleagues that work alongside them. We are proud to honour these truly deserving recipients.’
The awards will be presented next week at the Joint Meeting of the Europlanet Science Congress (EPSC) and the American Astronomical Society’s Division for Planetary Sciences (DPS) 2025, which will take place at Finlandia Hall, Helsinki, Finland, from 7-12 September.
Europlanet Early-Career Medal Winner, Tim Lichtenberg
Tim Lichtenberg works as Assistant Professor at the Kapteyn Astronomical Institute of the University of Groningen, where he leads the Forming Worlds Lab. His research bridges geochemistry, geophysics, climate science and exoplanet astronomy, and explores how factors like magma ocean longevity, the balance between oxidation and reduction processes, and core-mantle segregation can influence exoplanetary atmospheres and give insights into planetary evolution and habitability.
Lichtenberg proposed that the presence of aluminium-26 (26Al) during planet formation can heat and dry out embryonic planets. This theory could explain why planetary systems like our Solar System form largely dry terrestrial planets, contrasting with those in which Earth-mass exoplanets become water-rich ocean worlds. These theoretical insights have since been supported by observations of protoplanetary disks, analysis of stellar remnants that have been polluted by planetary debris, as well as evidence from meteorites formed very early in the Solar System’s history. These findings directly impact our understanding of the origin and distribution of long-lived atmospheres on terrestrial exoplanets.
Beyond his scientific achievements, Lichtenberg has shown leadership in community-building, promoting inclusive and team-spirited work environments and open science. He plays key roles in major international initiatives, including the Large Interferometer for Exoplanets (LIFE) project, several James Webb Space Telescope (JWST) programmes, and the interdisciplinary Rocky Worlds meeting series.
Europlanet Early-Career Medal citation: https://www.europlanet.org/europlanet-early-career-medal/
Forming Worlds Lab webpage: https://www.formingworlds.space
An interview with Tim Lichtenberg is included in Issue 8 of the Europlanet Magazine (Quickfire Questions with Tim Lichtenberg), with an extended version online (Exoplanets and Planetary Science: Two Different Worlds?).
Europlanet Mid-Career Medal Winner, Benoit Carry
Benoit Carry, of the Lagrange laboratory of the Observatoire de la Côte d'Azur (OCA), uses observational and theoretical approaches for understanding the distribution and the compositional diversity of small bodies in planetary systems. His work in interpreting data from major space missions, such as Gaia and Euclid, has been pivotal in advancing our understanding of the formation of the asteroid belt and the evolution of the Solar System.
Carry’s research has enabled more precise asteroid mass determinations, revealing key properties of asteroid interiors and substantially improving the accuracy of threat assessments for potentially hazardous asteroids. His collaborative work on compositional mapping of the asteroid belt has shaped current models of planetary migration and asteroid distribution. As co-chair of the ESA HERA mission’s Working Group on ground-based observations of Didymos, the target of the NASA DART and ESA HERA missions, he has taken a leading role in planning and interpreting asteroid deflection observations that will be vital for future planetary defence efforts.
Alongside the scientific impact of his work, Carry is committed to open science and has developed critical infrastructure for the planetary science community, including tools that enable the real-time classification of astronomical alerts and services that provide comprehensive data on over a million asteroids and dwarf planets.
The Europlanet Mid-Career Medal continues to honour the memory and legacy of the Italian scientist, Paolo Farinella (1953-2000), in whose name the Farinella Prize was awarded from 2011-2024.
Europlanet Mid-Career Medal citation: https://www.europlanet.org/europlanet-mid-career-medal/
Benoit Carry’s webpage: http://benoit.carry.free.fr
Europlanet Lifetime Achievement Winner, Jean Schnieder
Jean Schneider is Emeritus Researcher at the Observatoire de Paris-Meudon. Nearly a decade before the first observation of an exoplanet, Schneider laid the theoretical groundwork for identifying exoplanets through transit photometry. Missions such as CoRoT, Kepler, and TESS have all built on these foundations, leading to the detection of thousands of new worlds, including CoRoT-7b, the first super-Earth with a measured radius.
In 1994, Schneider published the first work proposing transmission spectroscopy, a method of detecting the molecular fingerprints of gases on extrasolar planets by analysing light filtered through the atmospheres of planets passing in front of their host stars. This technique, used on JWST and Hubble data and underpinning the upcoming ESA Ariel mission, has characterised the atmospheres of around 100 exoplanets to date and may help ultimately to answer the question of whether planets other than Earth might harbour life. Schneider also pioneered methodologies for detecting planets around binary stars and exomoons, pushing the frontiers of what could potentially be observed.
Several months before the discovery of 51 Pegasi b in 1995, Schneider created the Encyclopaedia of Exoplanetary Systems, which today includes comprehensive information on over 7,600 planets orbiting other stars and is a unique resource for research, teaching and public outreach around the world.
Throughout his career, Professor Schneider has shown a commitment to building the international collaborations and institutional frameworks required to support the advancement of planetary sciences, serving in many leadership roles for actions, working groups and steering committees at CNRS, ESO and the IAU.
Europlanet Lifetime Achievement Medal citation: https://www.europlanet.org/europlanet-lifetime-achievement-medal/