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Artist’s impression of TOI-561 b and its atmosphere above an ocean of magma; illustration published in 2025.Space · Nov 1, 2026TOI-561 b: how Webb is investigating the clouds of a lava planetA study of infrared variations from TOI-561 b favours a highly reflective atmosphere. Here is what Webb is actually measuring, what the models explain and what remains to be verified.Technician and laptop in front of a NERSC server rack, in 2011.AI · Nov 1, 2026AI agents: what open standards allow you to keepThe AAIF welcomes four projects to make agents more portable. Methods, models, testing and security: here’s what can travel, and what still needs checking.Trees, mosses and vegetation among the tombs at Père-Lachaise, photographed in February 2010.Nature and environment · Oct 31, 2026At Père-Lachaise, what makes the cemetery a refuge for wildlifeGrasses, trees and nighttime tranquillity: Père-Lachaise is home to documented wildlife. But observing species is not enough to measure whether their numbers are growing.Illustrative photograph: a mountain biker seen from behind on the course at the 2009 cross-country World Championships in Canberra.Cycling · Oct 31, 2026In Ploërmel, how mountain biking fits into educationTwo hours as an optional subject or four sessions in the sports section: at La Touche, the routes demand different levels of commitment. What their organisation reveals about the relationship between training, schooling and plans for the future.The Rosenbad building and its reflection in the water in Stockholm.AI · Oct 30, 2026Swedish government: why block ChatGPT and Claude websites while keeping access to the modelsSince 26 October 2026, work computers used by Swedish government services have no longer been able to access the ChatGPT and Claude websites. Some staff can nevertheless still use their models through Intric. To understand this decision, it is necessary to look at how data is handled, which tools are permitted and what the terms of use are.Europol headquarters in The Hague, the NetherlandsEurope · Oct 29, 2026Far-right terrorism in the EU: five attacks in 2025, a more diffuse threatEuropol recorded five attacks classified as far-right in the European Union in 2025, four of them foiled. Behind this low figure, transnational networks and online radicalisation make the threat harder to measure.Rows of servers in the BalticServers data centre, photographed in March 2013Politics · Oct 28, 2026Atlanta: Kelsea Bond’s task force on data centres remains on holdKelsea Bond wants to regulate the growth of data centres in Atlanta. But, as of 28 October, the announced task force has not yet been created: its resolution remains held up at city council.Archive image: CGT rally in Dijon in October 2025France · Oct 28, 2026Trade union funding: what the RN could cut — and what would remain beyond its reachSébastien Chenu promises to deprive the CGT of public subsidies if the RN comes to power. But several funding channels coexist: the state budget, the joint fund and local grants cannot all be abolished by a single decision.Catherine Meurisse photographed by Rita Scaglia in 2021, an archival portrait.Books · Oct 28, 2026Le Clan de Walden: entering Catherine Meurisse’s forestThe album extract opens with water, foliage and colour. An entry into Catherine Meurisse’s fable, in which Thoreau’s experience becomes a collective affair.Entrance to Sainte-Anne Hospital in Paris, archive photograph from December 2012.Health · Oct 28, 2026Treatment-resistant depression: where do esketamine and psilocybin stand?A medicine already authorised in Europe, and research protocols still to be assessed: these two avenues do not offer the same points of reference. Benefits, risks and care framework must be considered together.Dense forest bordering a watercourse in the Brazilian Amazon, archive photograph.Climate · Oct 28, 2026After Lula’s re-election, how should we interpret the fall in deforestation?INPE estimates that deforestation in the Legal Amazon amounted to 3 335 km² for August 2025–July 2026. This decline predates the election and should not be confused with either restoration or a target already achieved.The Orangerie at the Palace of Versailles and the flowerbeds in its gardensClimate · Oct 28, 2026At Versailles, adapting heritage to the climate begins with observationHeat, humidity, drought: the palace and its gardens do not call for the same responses. Monitoring collections and biodiversity helps guide interventions.
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