Institut d'astrophysique spatiale

The Parc botanique de Launay (90 hectares), sometimes known as the Parc botanique d'Orsay or the Parc de l'Université Paris XI, is a botanical garden located on the Université Paris-Sud XI campus at 3 rue Georges-Clemenceau, Orsay, Essonne, Île-de-France, France, and open daily; admission is free.

The Institut des hautes études scientifiques (IHÉS; English: Institute of Advanced Scientific Studies) is a French research institute supporting advanced research in mathematics and theoretical physics. It is located in Bures-sur-Yvette, just south of Paris. It is an independently governed research institute and a founding member of the University of Paris-Saclay.

Orsay-Ville station (French: Gare d'Orsay-Ville) is a RER B station in the town of Orsay, near Paris, in France. This is one of the stations for University of Paris-Sud.

The Computer Science Laboratory for Mechanics and Engineering Sciences (LIMSI) was a CNRS pluri-disciplinary science laboratory in Orsay, France. LIMSI academics and scholars come primarily from the Engineering and Information Sciences fields, but also from Cognitive Science and Linguistics. LIMSI is associated with the Paris-Sud University. LIMSI also collaborates with other universities and engineering schools within the University Paris-Saclay.

The Communauté d'agglomération Paris-Saclay (or CPS) is an administrative entity in the Essonne département, near Paris. The administrative center is Orsay. It was formed on 1 January 2016 by the merger of the former Communauté d'agglomération du Plateau de Saclay (CAPS) and the Communauté d'agglomération Europ'Essonne(E²). Its area is 185.9 km2. Its population was 314,169 in 2018.

École polytechnique universitaire de Paris-Saclay (Polytech Paris-Saclay) a French engineering College created in 2004.The school trains engineers in four sectors : electronics, computing, materials and optronics.Located in Orsay, Polytech Paris-Saclay is a public higher education institution. The school is a member of the Paris-Saclay University.

Bures-sur-Yvette (French pronunciation: [byʁ syʁ ivɛt] , lit. "Bures-on-Yvette") is a commune in the Essonne department in the Île-de-France region in Northern France. It is a southern Parisian outer suburb in the Vallée de Chevreuse, with a population of 9,254 as of 2021.

Paris-Saclay is a research-intensive and business cluster currently under construction in the south of Paris, France. It encompasses research facilities, two French major universities with higher education institutions (grandes écoles) and also research centers of private companies. In 2013, the Technology Review put Paris-Saclay in the top 8 world research clusters. In 2014, it comprised almost 15% of French scientific research capacity. The earliest settlements are from the 1950s, and this area was subsequently extended several times during the 1970s and 2000s. Several projects are underway to continue the development of the campus, including the relocation of some facilities. The area is now home to many of the Europe's largest high-tech corporations, and to the two French universities Paris-Saclay University (CentraleSupélec, ENS Paris-Saclay, Paris-Saclay Faculty of Science, etc.) and the Polytechnic Institute of Paris (École Polytechnique, Telecom Paris, etc.). The Paris-Saclay University was ranked 15th in the world in the 2023 ARWU ranking. It was also placed 1st in the world for Mathematics and 9th in the world for Physics (1st in Europe).The goal was to strengthen the cluster to build an international scientific and technological hub that can compete with other high-technology business districts, such as Silicon Valley or Cambridge, MA. This project started in 2006 and is likely to end in 2022. The main part is the construction of the campus du plateau de Saclay.

Bures-sur-Yvette station is one of the two RER B station of Bures-sur-Yvette, near Paris, in France. This station is used to access University of Paris-Sud, and Institut des Hautes Études Scientifiques.

Orsay (French pronunciation: [ɔʁsɛ] ) is a commune in the Essonne department in Île-de-France in northern France. It is located in the southwestern suburbs of Paris, France, 20.7 km (12.9 mi) from the centre of Paris. A fortified location of the Chevreuse valley since the 8th century and agricultural domain of wealthy and influential people, the development of Orsay is marked by the introduction of a railroad in the second half of the 18th century (today the RER B of which two stations are located in Orsay) and donations which allow the construction of a hospital still active to this day. Orsay is the main home to the Paris-Saclay University. The university significantly shapes Orsay's economy as it employs about 10,000 academic workers. The city's economy is also centered on high technology, with several companies drawn to the area by the Paris-Saclay's research and development infrastructure. Seat of the Orsay campus of Paris-Saclay University, crossed by the 118 national road, Orsay has become a residential city of the Paris metropolitan area and the Chevreuse valley, easily accessible and with a preserved environment at the heart of the Paris-Saclay scientific cluster with laboratories of the CNRS and the Curie Institute on its territory.

Paris-Saclay University (French: Université Paris-Saclay) is a combined technological research institute and public research university in Paris, France. Paris-Saclay was established in 2019 after the merger of four technical grandes écoles, as well as several technological institutes, engineering schools, and research facilities; giving it fifteen constituent colleges with over 48,000 students combined.With the merger, the French government has explicitly voiced their wish to rival top American technological research institutes, such as the MIT. The university has over 275 laboratories in particle physics, nuclear physics, astrophysics, atomic physics and molecular physics, condensed matter physics, theoretical physics, electronics, nanoscience and nanotechnology. It is part of the larger Paris-Saclay cluster, which is a research-intensive academic campus encompassing Paris-Saclay University, the Polytechnic Institute of Paris, combined with a business cluster for high-technology corporations. Paris-Saclay notably also includes the Institut des Hautes Études Scientifiques, where many contributions to the development of modern mathematics have been made, amongst them modern algebraic geometry and catastrophe theory.As of 2021, 11 Fields Medalists and 4 Nobel Prize winners have been affiliated with the university and its associated research institutes.

L'Institut national des sciences et techniques nucléaires (INSTN, National Institute for Nuclear Science and Technology), is a public higher education institution administered by the CEA (French Alternative Energies and Atomic Energy Commission) under the joint authority of the Ministry of National Education, Higher Education and Research, the Ministry of the Economy, Industry and the Digital Sector and the Ministry of the Environment, Energy and Marine Affairs. It is the main centre of education for nuclear energy in France.