The Cité de l'espace (French for Space City) is a scientific discovery centre in France focused on spaceflight.

It was carried out on the initiative of the Town Hall of Toulouse with the participation of numerous partners such as the Regional Council of Midi-Pyrénées, the Ministries of Equipment, Transport, Defence, National Education, Research and Technology, the National Center for Space Studies (CNES), Météo-France, EADS, Astrium, among others.

Cité de l'espace also has numerous exhibits, often interactive; for example, a mock-up of a control room near the model of Ariane 5 allows visitors to prepare the launching of a rocket, help with its flight and then place a satellite in orbit.

Terr@dome (a terrestrial half-sphere 25 m (82 ft) in diameter) presents the history of space from the Big-bang to the creation of the Solar System.

The Astralia, a building which opened in 2005, houses both a 280-seat planetarium, equipped with a 600 m2 (6,458 sq ft) hemispherical screen and a 300-seat IMAX theatre, showing sequences filmed in space (such as Hubble 3D).