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Far-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.
Royal rainbow wrasse: colour doesn’t tell the whole story of sex changeIn *Coris julis*, some females become males, while other individuals are male from their first sexual maturity. The colour patterns of this Mediterranean fish therefore need to be interpreted with care.
Pesticides: what 120-day derogations allow in FranceEmergency derogations are not general authorisations. A current example sheds light on their conditions, limits and duration.
Napoleon in Berlin: Beethoven’s ‘Eroica’ follows a different timelineOn 27 October 1806, the emperor entered Berlin. Yet the famous crossing-out in Beethoven’s Third Symphony was not a reaction to that parade.
CMSS and CNS: new certificate and objection, two distinct proceduresAfter a finding that someone is fit for work, providing new medical evidence and challenging the CNS’s decision are two distinct procedures. A ministerial reply of 23 October 2026 highlights the importance of formalities and deadlines.
Clocks: comparing precisionA comparison of three atomic clocks in Boulder sheds light on preparations for a new definition of the second. Differences between measurements are part of the process.
After the vote, who oversees European laws?Does a law achieve its aim once it has been passed? A September 2026 research briefing explains how the European Parliament can hold the executive to account.
At CERN, quantum entanglement can be read in the tracesATLAS and CMS have found strong evidence of entanglement between Z bosons originating from the Higgs. The experiment is easier to understand by following the particles detected.