TOPIC:At CERN “La nuit est belle !” 2026 From 9 to 11 October, CERN will participate in the sixth edition of “La nuit est belle !” by switching off lights across its sites — 30 September, 2026 Starting on the evening of Friday, 9 October, CERN will participate in the sixth edition of “La nuit est belle !”. Thanks to this initiative, turning off or dimming street lighting in the middle of the night has become common practice across the Geneva canton. For this edition, “La nuit est belle !” invites the public to explore the night through the theme of water. Rivers, lakes, streams, wetlands and landscapes shaped by water all serve as starting points for discovering the natural, cultural and sen...