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The Aletsch Glacier and its neighbours in the Swiss Alps, seen by Landsat 8 on 6 August 2024.Climate · Nov 1, 2026Retreating glaciers: what a map cannot tell a walkerMaps record the retreat of glaciers, but do not describe conditions on the day. From measuring climate change to unstable terrain and route planning, here are the key distinctions to bear in mind.Steve Jefferts and Tom Heavner beside the NIST-F2 atomic clock in the United States, in 2014.Basic science · Nov 1, 2026Atomic clocks: why our time depends on a networkThe alert over the clocks at the Paris Observatory highlights an essential infrastructure. The atomic second, world time and GPS: three concepts to distinguish.Water jet from the degassing system at Lake Nyos, between rocky shores, with a floating platform.Basic science · Nov 1, 2026Lake Nyos: how dissolved CO₂ caused the 1986 disasterIn Cameroon, Lake Nyos released a deadly cloud of CO₂ in August 1986. Understanding how the gas was stored at depth also explains how degassing systems work.Growing beds covered with straw in the Rodale experimental vegetable garden, with vegetables in the foreground.Lifestyle · Oct 31, 2026Mulching the vegetable garden in winter: finding the right balance with slugsLeaves, straw, depth and moisture: practical pointers for protecting the soil without applying a one-size-fits-all recipe. And what trials tell us about slug barriers.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.Side view of a European badger in the grass, against a dark background.Nature and environment · Oct 30, 2026Blairelle: what is the female European badger called?The word refers to the female European badger. A few facts about its sett, clan and diet provide some context, without inferring differences between the sexes.The façade of the Palais-Bourbon, home of the National Assembly, beneath a blue skyFrance · Oct 29, 2026After Trappes: what can be established about hate speech and violenceIn the National Assembly, responsibility for words has become a political battleground. Yet the investigation has established no direct link with a political party: research urges us to distinguish collective influence from individual causation.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.Coloured micrograph of a melanoma sample, archive illustrationHealth · Oct 28, 2026Melanoma: what the benefit of the personalised intismeran vaccine measuresA phase 3 trial shows a gain in recurrence-free survival after surgery. The results relate to high-risk melanomas and do not yet prove that patients live longer.Microscopy illustration: extensions of human neurons, with structures marked in green and pink.AI · Oct 28, 2026Living neurons and computing: what the CL1 prototype shows in SingaporeTwenty units combining cells and electronics were presented in Singapore in August 2026. The prototype opens up a field for experimentation; it does not demonstrate general superiority over AI systems.Triops cancriformis photographed in an aquarium on pale sand and pebbles, with its long antennae and shield-shaped shell.Nature and environment · Oct 28, 2026Triops: why their eggs can wait for the next rainTriops live in pools that can disappear for months. Studies shed light on the dormancy of their eggs, their resistance to drying out and the signals that trigger hatching.
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