Getting to GEOPS

The Laboratory is located on the Orsay campus of Paris-Saclay University, approximately 25 km southwest of Paris.

By public transportation

• Option 1: Take the RER B train towards Saint-Rémy les Chevreuse, get off at Massy-Palaiseau station, then take bus line 91-06 (Christ / N306, Saclay / GARE DE MASSY PALAISEAU, Massy) to the stop marked “Université Paris-Saclay, Orsay” – Walk to GEOPS.
• Option 2: Take the RER B train towards Saint-Rémy les Chevreuse, get off at Le Guichet station and walk to GEOPS.

From Paris-Orly airport, take the OrlyVal to “Antony” then the RER B

From Roissy-CDG airport, take the RER B directly across Paris center to “Massy-Palaiseau” or “Le Guichet”

By car

Go to the coordinates (48.70653, 2.17937) or:

Take the RN118.

Take exit 9 (Centre Universitaire) and follow Orsay Université and Gendarmerie towards rue du Belvédère.