The European Space Agency's lander Philae touched down on 67P/Churyumov–Gerasimenko, becoming the first spacecraft to land on a comet. European Space Agency: The European Space Agency is a 23-member international organisation devoted to space exploration. It has its headquarters in Paris and a staff of around 3,000 people globally as of 2025. ESA was founded in 1975 in the context of European integration. Its 2026 annual budget was around €8.3 billion. November 12, 2014. Wiki link