news 2025

In the future, could our mobile phones and internet data operate using light rather than just electricity? Now, for the first time, an international research team led by CNRS researchers 1 has discovered how to generate an electron gas, found for example in LED screens, by illuminating a material made up of layers of oxides 2 .

JUNO, a giant next-generation neutrino detector, has just begun collecting data.

CNRS press release dated 23 July 2025. Based on a scientific publication to which members of the Lyon Astrophysics Research Centre (CNRS, ENS Lyon, Claude Bernard University) and the LPENSL Physics Laboratory (CNRS, ENS Lyon) contributed: 'A Core-sensitive Mixed f/g-mode of the Sun Predicted by Wave Topology and Hydrodynamical Simulation', published in The Astrophysical Journal Letters.

According to a CNRS communication dated October 29, 2025. Based on a scientific publication in Physical Review Letters to which Ludovic Bellon, a CNRS researcher at ENS de Lyon's Physics Laboratory (LPENSL), contributed: "Information Engine Fueled by First-Passage Times." Thumbnail image: a Brownian particle (subject to thermal agitation) wanders in a confined well until it reaches a threshold, where an automated system (a demon) acts on the position of the well to extract energy from the particle.

An extraordinary event consistent with a neutrino with an estimated energy of about 220 PeV (220 x 1015 electron volts or 220 million billion electron volts), was detected on February 13, 2023, by the ARCA detector of the kilometre cubic neutrino telescope (KM3NeT) in the deep sea. This event, named KM3-230213A, is the most energetic neutrino ever observed and provides the first evidence that neutrinos of such high energies are produced in the Universe.

A researcher from the Physics Laboratory at ENS de Lyon "unravels knitwear" to turn it into a research subject. This article made the front page of the latest Pop Sciences newsletter. Written by Martin Koppe for the CNRS, the article honours Audrey Steinberger and her subject, which might be considered "exotic": knitwear.

Light, soft, resistant, deformable and sometimes ugly, knitwear is not just an everyday object; it's also a metamaterial whose extraordinary properties are of great interest to physicists. While physics research is often associated with such gigantic technical infrastructures as the LHC, it also sometimes takes an interest in everyday objects.