France was the fourth country to achieve nuclear capability and has the third largest nuclear weapons arsenal in the world; it is also a leader in civilian nuclear technology. France was the third nation, after the Soviet Union and the United States, to launch its own space satellite, and the first to establish a commercial launch service provider, Arianespace. France is a founding member of the European Space Agency (ESA), which is headquartered in Paris, and its leading contributor, providing over a quarter of its budget. ESA's principal spaceport is based in French Guiana, while its main launch vehicle is the French Ariane 5. France's national space program, CNES, is the oldest, largest, and most active in Europe. France was ranked 12nd in the Global Innovation Index in 2020, up from 16th in 2019.