CERN is taking part in Geneva’s first ever switch-off of street lighting on 26 September. The “La nuit est belle” project is aimed at raising awareness about the impact of light pollution resulting from excessive artificial lighting. No fewer than 149 communes on both sides of the border are contributing to the project.

CERN encourages you to join in as well: switch off your lights, take advantage of the dark and look up at the stars. The astronomical conditions on the night of 26 September will be ideal (provided the sky is cloud-free) with a new moon, the Milky Way visible from sunset and a chance to see Saturn and Jupiter.

For those of you working late at CERN, please note that the sites will not be lit that night. Cyclists and pedestrians should make sure that they are visible. Follow the event live on social media via the hashtag #lanuitestbelle.

For more information, visit the website: https://www.lanuitestbelle.org