Radiant is a rapidly growing green tech start-up that specialises in producing carbon-free heat for industrial use. It won first prize in the European Stage Two competition, representing École Polytechnique, and successfully raised funds at the end of last year. Meet its two founders: Thomas Delhon, an aerospace engineer, and Alexandre Meurisse, a former PhD student at the German Aerospace Center (DLR) laboratories. They received support from École Polytechnique's X-UP incubator, which provided a springboard for their success.
Ortensia Forni is a doctoral student at LadHyX* with Michael Benzaquen**, head of the EconophysiX Lab***, and Alexandre Darmon, CEO of Art in Research****. An applied mathematician by training, she is interested in human perception of colors and their harmony. Her research explores what makes certain color combinations more harmonious than others and how our preferences may be influenced by nature.
The signing of a new agreement with Waseda University, one of Japan’s leading higher education institutions, fully aligns with École Polytechnique’s international strategy, expanding its collaboration with top-tier Japanese institutions in research, education, entrepreneurship, and innovation. École Polytechnique’s official cooperation with selected Japanese partners - all renowned for their scientific and academic excellence - dates back to 1994 and spans multiple fields.
Enceladus is one of the moons of the planet Saturn. A study led by researchers at the Plasma Physics Laboratory (LPP*) reveals that the magnetic interaction between the two bodies extends over much greater distances than previously known—more than 500,000 kilometers. This finding was made possible by data from the Cassini mission.
Scientists at the Hydrodynamics Laboratory (LadHyX*) and the Laboratoire de physique et mécanique des milieux hétérogènes (PMMH*) have discovered a new phenomenon that allows fibers to be sorted according to their size in microscopic fluid flows.
Nearly forty teaching and research positions are open for recruitment at École Polytechnique for the 2026 campaign. Ten disciplines are involved, including physics, applied mathematics, and computer science. This is an opportunity to work in a dynamic ecosystem comprising 23 research laboratories and cutting-edge technologies alongside experts from other leading organisations, such as the CNRS, INRIA and INSERM.
Named “AI for Markets and Quantitative Investments” (MaQI), this new master's program complements École Polytechnique's AI training offerings. It aims to help position France as a center of excellence in finance training in the age of AI. The program will begin in September 2026.
École Polytechnique has confirmed its top position in the annual ranking of French engineering schools published by the specialist magazine L’Usine Nouvelle. L’X confirmed its top position in two of the four indicator categories in this ranking: internationalization and the integration of its students into professional life. It also secured first place in research, a category in which it ranked third in 2025.
From middle school to higher education, a variety of support measures can be implemented to encourage and assist women in achieving success in science. On Monday, 26 January, Juliette Toumelin (Head of the Equal Opportunities Division within the Corporate Social Responsibility and Environmental Responsibility Department) and Antigoni Alexandrou (CNRS Research Director at LOB) discussed the mentoring programmes available at École Polytechnique and the Institut Polytechnique de Paris.
Since its creation in 2009, the Mathematical Modelling and Biodiversity Chair (MMB), supported by École Polytechnique and its Foundation, in collaboration with the National Museum of Natural History and supported by Veolia, has been exploring the major challenges of biodiversity at the interface between applied mathematics and ecology. Through interdisciplinary research programmes, scientific meetings and training initiatives, the Chair brings together nearly 150 experts from international laboratories and research institutions to address fundamental questions about population dynamics, evolution and ecosystem resilience.
Nanomaterials are much talked-about, but the methods for making them are still the subject of fundamental research, especially when high temperatures are required. At the Laboratory of Condensed Matter for Physics, a research team is exploring new ways of synthesizing them, using molten salts and lasers.
Nicolas Roche, the Secretary-General for Defence and National Security (SGDSN), spoke to engineering students from the X23 and X24 classes about the latest 'National Strategic Review', which was coordinated by the SGDSN. He emphasised the importance of paragraph 112 of the review, which summarises the central scenario of the French authorities – preparing for war – and encouraged Polytechnique students to play their full part in it.
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