Which countries are involved in the hubble program?

The Hubble Space Telescope program primarily involves the United States and several European countries through the European Space Agency (ESA). NASA, the U.S. space agency, is responsible for the telescope's operation and maintenance, while ESA contributes scientific instruments and funding. Key European countries involved include the United Kingdom, Germany, and France. This collaboration has enabled a wide range of astronomical discoveries and advancements in space science.