The Observatory of Sciences of the Universe in the Centre-Val de Loire region (OSUC) is one of the 28 OSU of the National Institute of Sciences of the Universe of the CNRS, and constitutes an internal school of the University of Orleans.

The role of the OSUs is to implement long-term actions and national observation services, to promote interdisciplinary research, to disseminate scientific knowledge and to train students within universities.

OSUC is a federative structure that brings together three research laboratories: ISTO, LPC2E and the Nançay radio astronomy station. “Partner” teams from other laboratories on the large Orleans campus are also part of the OSUC.

The OSUC relies on a Research Support Unit (UAR 3116), with three supervisors: CNRS, University of Orléans and Observatoire de Paris for its management and to carry out its missions.