Grenoble Observatory for Sciences of the Universe

The Grenoble Observatory for Sciences of the Universe (OSUG) (French: Observatoires des sciences de l'Univers de Grenoble) is an astronomical observatory in France that is attached to CNRS-INSU and Grenoble Alpes University.

OSUG engages in scientific studies related to all aspects of the universe, the earth and environmental systems. The OSUG federates 1100 personals in 6 research Units, 5 Associated Research Teams and 2 joint service units federated, mostly located on the Saint-Martin d'Hères Campus near Grenoble.

OSUG was created on 26 November by governmental decree n° 85-1243.